vd(1)

NAME
VisiData - a terminal utility for exploring and arranging tabular data

SYNOPSIS
vd [options] [input ...]
vd [options] --play cmdlog [-w waitsecs] [--batch] [-i] [-o output] [field=value]
vd [options] [input ...] +toplevel:subsheet:col:row

DESCRIPTION
VisiData is an easy-to-use multipurpose tool to explore, clean, edit, and restructure data. Rows can be selected, filtered, and grouped; columns can be rearranged, transformed, and derived via regex or Python expressions; and workflows can be saved, documented, and replayed.

  REPLAY MODE
replay a saved cmdlog within the interface wait seconds between commands replay in batch mode (with no interface) launch VisiData in interactive mode after batch save final visible sheet to file as .tsv
field=value
    replace "{field}" in cmdlog contents with value

  Commands During Replay
^K  cancel current replay

  GLOBAL COMMANDS
All keystrokes are case sensitive. The ^ prefix is shorthand for Ctrl.

  Keystrokes to start off with
^Q  abort program immediately
^C  cancel user input or abort all async threads on current sheet
g^C abort all secondary threads
q   quit current sheet or menu
Q   quit current sheet and free associated memory
gq  quit all sheets (clean exit)

Alt+H
    activate help menu (Enter/left-mouse to expand submenu or execute command)
g^H view this man page
z^H view sheet of command longnames and keybindings for current sheet

gb  open sidebar in a new sheet
b   toggle sidebar

U   undo the most recent modification (requires enabled options.undo)
R   redo the most recent undo (requires enabled options.undo)

Space longname
    open command palette; Enter to execute top command by its longname

  Command Palette
Tab Move to command palette, and cycle through commands
0-9 Execute numbered command
Enter
    Execute highlighted command

  Cursor Movement
Arrow PgUp
    go as expected
h   j   k   l
    go left/down/up/right
gh  gj  gk  gl
    go all the way to the left/bottom/top/right of sheet
G  gg
    go all the way to the bottom/top of sheet
Ic. End  Home
    go all the way to the bottom/top of sheet
^B  ^F
    scroll one page back/forward
^Left ^Right
    scroll one page left/right
zz  scroll current row to center of screen

^^ (Ctrl+^)
    jump to previous sheet (swaps with current sheet)

/   ? regex
    search for regex forward/backward in current column
g/  g? regex
    search for regex forward/backward over all visible columns
z/  z? expr
    search by Python expr forward/backward in current column (with column names as variables)
n   N
    go to next/previous match from last regex search

<   >
    go up/down current column to next value
z<  z>
    go up/down current column to next null value
{   }
    go up/down current column to next selected row

c regex
    go to next column with name matching regex
r regex
    go to next row with key matching regex
zc  zr number
    go to column/row number (0-based)

H   J   K   L
    slide current row/column left/down/up/right
gH  gJ  gK  gL
    slide current row/column all the way to the left/bottom/top/right of sheet
zH  zJ  zK  zK number
    slide current row/column number positions to the left/down/up/right

zh  zj  zk  zl
    scroll one left/down/up/right

  Column Manipulation
_ (underbar)
    toggle width of current column between full and default width
g_  toggle widths of all visible columns between full and default width
z_ number
    adjust width of current column to number
gz_ number
    adjust widths of all visible columns to Ar number

- (hyphen)
    hide current column
z-  reduce width of current column by half
gv  unhide all columns

! z!
    toggle/unset current column as a key column
~  #  %  $  @  z#
    set type of current column to str/int/float/currency/date/len
Alt++  Alt+-
    show more/less precision in current numerical column
^   rename current column
g^  rename all unnamed visible columns to contents of selected rows (or current row)
z^  rename current column to combined contents of current cell in selected rows (or current row)
gz^ rename all visible columns to combined contents of current column for selected rows (or current row)

= expr
    create new column from Python expr, with column names, and attributes, as variables
g= expr
    set current column for selected rows to result of Python expr
gz= expr
    set current column for selected rows to the items in result of Python sequence expr
z= expr
    evaluate Python expression on current row and set current cell with result of Python expr

i   add column with incremental values
gi  set current column for selected rows to incremental values
zi step
    add column with values at increment step
gzi step
    set current column for selected rows at increment step

' (tick)
    add a frozen copy of current column with all cells evaluated
g'  open a frozen copy of current sheet with all visible columns evaluated
z'  gz'
    add/reset cache for current/all visible column(s)

: regex
    add new columns from regex split; number of columns determined by example row at cursor
; regex
    add new columns from capture groups of regex (also requires example row)
z; expr
    create new column from bash expr, with $columnNames as variables
* regex/subst
    add column derived from current column, replacing regex with subst (may include \1 backrefs)
g*  gz* regex/subst
    modify selected rows in current/all visible column(s), replacing regex with subst (may include \1 backrefs)

(   g(
    expand current/all visible column(s) of lists (e.g. [3]) or dicts (e.g. {3}) one level
z(  gz( depth
    expand current/all visible column(s) of lists (e.g. [3]) or dicts (e.g. {3}) to given depth (0= fully)
)   g(
    unexpand current/all visible column(s); restore original column and remove other columns at this level
z)  gz) depth
    contract current/all visible column(s) of former lists (e.g. [3]) or dicts (e.g. {3}) to given depth (0= fully)
zM  row-wise expand current column of lists (e.g. [3]) or dicts (e.g. {3}) within that column

  Row Selection
s   t   u
    select/toggle/unselect current row
gs  gt  gu
    select/toggle/unselect all rows
zs  zt  zu
    select/toggle/unselect all rows from top to cursor
gzs gzt gzu
    select/toggle/unselect all rows from cursor to bottom
|   \ regex
    select/unselect rows matching regex in current column
g|  g\ regex
    select/unselect rows matching regex in any visible column
z|  z\ expr
    select/unselect rows matching Python expr in any visible column
, (comma)
    select rows matching display value of current cell in current column
g,  select rows matching display value of current row in all visible columns
z, gz,
    select rows matching typed value of current cell/row in current column/all visible columns

  Row Sorting/Filtering
[    ]
    sort ascending/descending by current column; replace any existing sort criteria
g[   g]
    sort ascending/descending by all key columns; replace any existing sort criteria
z[   z]
    sort ascending/descending by current column; add to existing sort criteria
gz[  gz]
    sort ascending/descending by all key columns; add to existing sort criteria
"   open duplicate sheet with only selected rows
g"  open duplicate sheet with all rows
gz" open duplicate sheet with deepcopy of selected rows

The rows in these duplicated sheets (except deepcopy) are references to rows on the original source sheets, and so edits to the filtered rows will naturally be reflected in the original rows. Use g' to freeze sheet contents in a deliberate copy.

  Editing Rows and Cells
a   za
    append blank row/column; appended columns cannot be copied to clipboard
ga  gza number
    append number blank rows/columns
d   gd
    delete current/selected row(s)
y   gy
    yank (copy) current/all selected row(s) to clipboard in Memory Sheet
x   gx
    cut (copy and delete) current/all selected row(s) to clipboard in Memory Sheet
zy  gzy
    yank (copy) contents of current column for current/selected row(s) to clipboard in Memory Sheet
zd  gzd
    set contents of current column for current/selected row(s) to options.null_value
zx  gzx
    cut (copy and delete) contents of current column for current/selected row(s) to clipboard in Memory Sheet
p    P
    paste clipboard rows after/before current row
zp  gzp
    set cells of current column for current/selected row(s) to last clipboard value
zP  gzP
    paste to cells of current column for current/selected row(s) using the system clipboard
Y   gY
    yank (copy) current/all selected row(s) to system clipboard (using options.clipboard_copy_cmd)
zY  gzY
    yank (copy) contents of current column for current/selected row(s) to system clipboard (using options.clipboard_copy_cmd)
f   fill null cells in current column with contents of non-null cells up the current column
e text
    edit contents of current cell
ge text
    set contents of current column for selected rows to text

  Commands While Editing Input
Enter  ^C
    accept/abort input
^O  g^O
    open external $EDITOR to edit contents of current/selected rows in current column
^R  reload initial value
^A   ^E
    go to beginning/end of line
^B   ^F
    go back/forward one character
^←   ^→ (arrow)
    go back/forward one word
^H   ^D
    delete previous/current character
^T  transpose previous and current characters
^U   ^K
    clear from cursor to beginning/end of line
^Y  paste from cell clipboard
Backspace  Del
    delete previous/current character
Insert
    toggle insert mode
Up  Down
    set contents to previous/next in history
Tab  Shift+Tab
    move cursor left/right and re-enter edit mode
Shift+Arrow
    move cursor in direction of Arrow and re-enter edit mode

  Data Toolkit
o input
    open input in VisiData
zo  open file or url from path in current cell
^S g^S filename
    save current/all sheet(s) to filename in format determined by extension (default .tsv)
    Note: if the format does not support multisave, or the filename ends in a /, a directory will be created.
z^S filename
    save current column only to filename in format determined by extension (default .tsv)
^D filename.vdj
    save CommandLog to filename.vdj file
A   open new blank sheet with one column
T   open new sheet that has rows and columns of current sheet transposed

+ aggregator
    add aggregator to current column (see Frequency Table)
z+ aggregator
    display result of aggregator over values in selected rows for current column; store result in Memory Sheet
&   append top two sheets in Sheets Stack
g&  append all sheets in Sheets Stack

w nBefore nAfter
    add column where each row contains a list of that row, nBefore rows, and nAfter rows

  Data Visualization
. (dot)
    plot current numeric column vs key columns. The numeric key column is used for the x-axis; categorical key column values determine color.
g.  plot a graph of all visible numeric columns vs key columns.

If rows on the current sheet represent plottable coordinates (as in .shp or vector .mbtiles sources), . plots the current row, and g. plots all selected rows (or all rows if none selected).

  Canvas-specific Commands
+   -
    increase/decrease zoom level, centered on cursor
_ (underbar)
    zoom to fit full extent
z_ (underbar)
    set aspect ratio
x xmin xmax
    set xmin/xmax on graph
y ymin ymax
    set ymin/ymax on graph
s   t   u
    select/toggle/unselect rows on source sheet contained within canvas cursor
gs  gt  gu
    select/toggle/unselect rows on source sheet visible on screen
d   delete rows on source sheet contained within canvas cursor
gd  delete rows on source sheet visible on screen
Enter
    open sheet of source rows contained within canvas cursor
gEnter
    open sheet of source rows visible on screen
1 - 9
    toggle display of layers
^L  redraw all pixels on canvas
v   toggle show_graph_labels option
mouse scrollwheel
    zoom in/out of canvas
left click-drag
    set canvas cursor
right click-drag
    scroll canvas

  Split Screen
Z   split screen in half, so that second sheet on the stack is visible in a second pane
zZ  split screen, and queries for height of second pane

  Split Window specific Commands
gZ  close an already split screen, current pane full screens
Z   push second sheet on current pane's stack to the top of the other pane's stack
Tab jump to other pane
gTab
    swap panes
g Ctrl+^
    cycle through sheets

  Other Commands
Q   quit current sheet and remove it from the CommandLog
v   toggle sheet-specific visibility (multi-line rows on Sheet, legends/axes on Graph)

^E  g^E
    view traceback for most recent error(s)
z^E view traceback for error in current cell

^L  refresh screen
^R  reload current sheet
^Z  suspend VisiData process
^G  show cursor position and bounds of current sheet on status line
^V  show version and copyright information on status line
^P  open Status History
m keystroke
    first, begin recording macro; second, prompt for keystroke, and complete recording. Macro can then be executed everytime provided keystroke is used. Will override existing keybinding. Macros will run on current row, column, sheet.
gm  open an index of all existing macros. Can be directly viewed with Enter, and then modified with ^S.

^Y  z^Y  g^Y
    open current row/cell/sheet as Python object
^X expr
    evaluate Python expr and opens result as Python object
z^X expr
    evaluate Python expr, in context of current row, and open result as Python object
g^X module
    import Python module in the global scope

  Internal Sheets List
.   Directory Sheet browse properties of files in a directory
.   Guide Index read documentation from within VisiData
.   Memory Sheet (Alt+Shift+M) browse saved values, including clipboard
Metasheets
.   Columns Sheet (Shift+C) edit column properties
.   Sheets Sheet (Shift+S) jump between sheets or join them together
.   Options Sheet (Shift+O) edit configuration options
.   Commandlog (Shift+D) modify and save commands for replay
.   Error Sheet (Ctrl+E) view last error
.   Status History (Ctrl+P) view history of status messages
.   Threads Sheet (Ctrl+T) view, cancel, and profile asynchronous threads

Derived Sheets
.   Frequency Table (Shift+F) group rows by column value, with aggregations of other columns
.   Describe Sheet (Shift+I) view summary statistics for each column
.   Pivot Table (Shift+W) group rows by key and summarize current column
.   Melted Sheet (Shift+M) unpivot non-key columns into variable/value columns
.   Transposed Sheet (Shift+T) open new sheet with rows and columns transposed

  INTERNAL SHEETS

  Directory Sheet
(global commands)
Space open-dir-current
    open the Directory Sheet for the current directory
(sheet-specific commands)
Enter  gEnter
    open current/selected file(s) as new sheet(s)
^O  g^O
    open current/selected file(s) in external $EDITOR
^R  z^R  gz^R
    reload information for all/current/selected file(s)
d   gd
    delete current/selected file(s) from filesystem, upon commit
y   gy directory
    copy current/selected file(s) to given directory, upon commit
e   ge name
    rename current/selected file(s) to name
` (backtick)
    open parent directory
z^S commit changes to file system

  Guide Index
Browse through a list of available guides. Each guide shows you how to use a particular feature. Gray guides have not been written yet.
(global commands)
Space open-guide-index
    open the Guide Index
(sheet-specific commands)
Enter
    open a guide

  Memory Sheet
Browse through a list of stored values, referanceable in expressions through their name.
(global commands)
Alt+Shift+M
    open the Memory Sheet
Alt+M name
    store value in current cell in Memory Sheet under name
(sheet-specific commands)
e   edit either value or name, to edit reference

  METASHEETS

  Columns Sheet (Shift+C)
Properties of columns on the source sheet can be changed with standard editing commands (e ge g= Del) on the Columns Sheet. Multiple aggregators can be set by listing them (separated by spaces) in the aggregators column. The 'g' commands affect the selected rows, which are the literal columns on the source sheet.
(global commands)
gC  open Columns Sheet with all visible columns from all sheets
(sheet-specific commands)
&   add column from appending selected source columns
g! gz!
    toggle/unset selected columns as key columns on source sheet
g+ aggregator
    add Ar aggregator No to selected source columns
g- (hyphen)
    hide selected columns on source sheet
g~ g# g% g$ g@ gz# z%
    set type of selected columns on source sheet to str/int/float/currency/date/len/floatsi
Enter
    open a Frequency Table sheet grouped by column referenced in current row

  Sheets Sheet (Shift+S)
open Sheets Stack, which contains only the active sheets on the current stack
(global commands)
gS  open Sheets Sheet, which contains all sheets from current session, active and inactive
Alt number
    jump to sheet number
(sheet-specific commands)
Enter
    jump to sheet referenced in current row
gEnter
    push selected sheets to top of sheet stack
a   add row to reference a new blank sheet
gC  gI
    open Columns Sheet/Describe Sheet with all visible columns from selected sheets
g^R reload all selected sheets
z^C  gz^C
    abort async threads for current/selected sheets(s)
g^S save selected or all sheets
& jointype
    merge selected sheets with visible columns from all, keeping rows according to jointype:
.   inner keep only rows which match keys on all sheets
.   outer keep all rows from first selected sheet
.   full keep all rows from all sheets (union)
.   diff keep only rows NOT in all sheets
.   append combine all rows from all sheets
.   concat similar to 'append' but keep first sheet type and columns
.   extend copy first selected sheet, keeping all rows and sheet type, and extend with columns from other sheets
.   merge keep all rows from first sheet, updating any False-y cells with non-False-y values from second sheet; add unique rows from second sheet

  Options Sheet (Shift+O)
(global commands)
Shift+O
    edit global options (apply to all sheets)
zO  edit sheet options (apply to current sheet only)
gO  open options.config as TextSheet
(sheet-specific commands)
Enter  e
    edit option at current row
d   remove option override for this context
^S  save option configuration to foo.visidatarc

  CommandLog (Shift+D)
(global commands)
D   open current sheet's CommandLog with all other loose ends removed; includes commands from parent sheets
gD  open global CommandLog for all commands executed in the current session
zD  open current sheet's CommandLog with the parent sheets commands' removed
(sheet-specific commands)
x   replay command in current row
gx  replay contents of entire CommandLog
^C  abort replay

  Threads Sheet (Ctrl+T)
(global commands)
^T  open global Threads Sheet for all asynchronous threads running
z^T open current sheet's Threads Sheet
(sheet-specific commands)
^C  abort thread at current row
g^C abort all threads on current Threads Sheet

  DERIVED SHEETS

  Frequency Table (Shift+F)
A Frequency Table groups rows by one or more columns, and includes summary columns for those with aggregators.
(global commands)
gF  open Frequency Table, grouped by all key columns on source sheet
zF  open one-line summary for all rows and selected rows
(sheet-specific commands)
s   t   u
    select/toggle/unselect these entries in source sheet
Enter  gEnter
    open copy of source sheet with rows that are grouped in current cell / selected rows

  Describe Sheet (Shift+I)
A Describe Sheet contains descriptive statistics for all visible columns.
(global commands)
gI  open Describe Sheet for all visible columns on all sheets
(sheet-specific commands)
zs  zu
    select/unselect rows on source sheet that are being described in current cell
!   toggle/unset current column as a key column on source sheet
Enter
    open a Frequency Table sheet grouped on column referenced in current row
zEnter
    open copy of source sheet with rows described in current cell

  Pivot Table (Shift+W)
Set key column(s) and aggregators on column(s) before pressing Shift+W on the column to pivot.
(sheet-specific commands)
Enter
    open sheet of source rows aggregated in current pivot row
zEnter
    open sheet of source rows aggregated in current pivot cell

  Melted Sheet (Shift+M)
Open Melted Sheet (unpivot), with key columns retained and all non-key columns reduced to Variable-Value rows.
(global commands)
gM regex
    open Melted Sheet (unpivot), with key columns retained and regex capture groups determining how the non-key columns will be reduced to Variable-Value rows.

  Python Object Sheet (^X ^Y g^Y z^Y)
(sheet-specific commands)
Enter
    dive further into Python object
v   toggle show/hide for methods and hidden properties
gv  zv
    show/hide methods and hidden properties

COMMANDLINE OPTIONS
Add -n/--nonglobal to make subsequent CLI options sheet-specific (applying only to paths specified directly on the CLI). By default, CLI options apply to all sheets.

Options can also be set via the Options Sheet or a .visidatarc (see FILES).

-P=longname
    preplay longname before replay or regular launch; limited to Base Sheet bound commands
+toplevel:subsheet:col:row
    launch vd with subsheet of toplevel at top-of-stack, and cursor at col and row; all arguments are optional
--overwrite=c
    Overwrite with confirmation
--guides
    open Guide Index

    tsv set loader to use for filetype instead of file extension \t field delimiter to use for tsv/usv filetype y overwrite existing files without confirmation n do not overwrite existing files False disable loading .visidatarc and plugin addons
--visidata-dir=str           ~/.visidata/
    directory to load and store additional files
--debug                      False
    exit on error and display stacktrace
--undo=bool                  True
    enable undo/redo
--col-cache-size=int         0
    max number of cache entries in each cached column
--note-pending=str           ⌛
    note to display for pending cells
--note-format-exc=str       ?
    cell note for an exception during formatting
--note-getter-exc=str       !
    cell note for an exception during computation
--note-type-exc=str         !
    cell note for an exception during type conversion
--scroll-incr=int            -3
    amount to scroll with scrollwheel
--force-256-colors           False
    use 256 colors even if curses reports fewer
--quitguard                  False
    confirm before quitting modified sheet
--default-width=int          20
    default column width
--default-height=int         4
    default column height
--textwrap-cells=bool        True
    wordwrap text for multiline rows
--name-joiner=str            _
    string to join sheet or column names
--value-joiner=str
    string to join display values
--wrap                       False
    wrap text to fit window width on TextSheet
--save-filetype=str          tsv
    specify default file type to save as
--profile                    False
    enable profiling on threads
--min-memory-mb=int          0
    minimum memory to continue loading and async processing
--encoding=str               utf-8-sig
    encoding passed to codecs.open when reading a file
--encoding-errors=str        surrogateescape
    encoding_errors passed to codecs.open
--mouse-interval=int         1
    max time between press/release for click (ms)
--bulk-select-clear          False
    clear selected rows before new bulk selections
--some-selected-rows         False
    if no rows selected, if True, someSelectedRows returns all rows; if False, fails
--regex-skip=str
    regex of lines to skip in text sources
--regex-flags=str            I
    flags to pass to re.compile() [AILMSUX]
--load-lazy                  False
    load subsheets always (False) or lazily (True)
--skip=int                   0
    skip N rows before header
--header=int                 1
    parse first N rows as column names
--delimiter=str
    field delimiter to use for tsv/usv filetype
--row-delimiter=str
    " row delimiter to use for tsv/usv filetype
--tsv-safe-newline=str
    replacement for newline character when saving to tsv
--tsv-safe-tab=str
    replacement for tab character when saving to tsv
--visibility=int             0
    visibility level
--default-sample-size=int    100
    number of rows to sample for regex.split (0=all)
--fmt-expand-dict=str        %s.%s
    format str to use for names of columns expanded from dict (colname, key)
--fmt-expand-list=str        %s[%s]
    format str to use for names of columns expanded from list (colname, index)
--json-indent=NoneType       None
    indent to use when saving json
--json-sort-keys             False
    sort object keys when saving to json
--json-ensure-ascii=bool     True
    ensure ascii encode when saving json
--default-colname=str
    column name to use for non-dict rows
--filetype=str
    specify file type
--safe-error=str             #ERR
    error string to use while saving
--save-encoding=str          utf-8
    encoding passed to codecs.open when saving a file
--clean-names                False
    clean column/sheet names to be valid Python identifiers
--replay-wait=float          0.0
    time to wait between replayed commands, in seconds
--rowkey-prefix=str          キ
    string prefix for rowkey in the cmdlog
--clipboard-copy-cmd=str     xclip -selection clipboard -filter
    command to copy stdin to system clipboard
--clipboard-paste-cmd=str    xclip -selection clipboard -o
    command to send contents of system clipboard to stdout
--fancy-chooser              False
    a nicer selection interface for aggregators and jointype
--null-value=NoneType        None
    a value to be counted as null
--histogram-bins=int         0
    number of bins for histogram of numeric columns
--numeric-binning            False
    bin numeric columns into ranges
--plot-colors=str
    list of distinct colors to use for plotting distinct objects
--motd-url=str
    source of randomized startup messages
--dir-depth=int              0
    folder recursion depth on DirSheet
--dir-hidden                 False
    load hidden files on DirSheet
--config=Path                ~/.visidatarc
    config file to exec in Python
--play=str
    file.vdj to replay
--batch                      False
    replay in batch mode (with no interface and all status sent to stdout)
--output=NoneType            None
    save the final visible sheet to output at the end of replay
--preplay=str
    longnames to preplay before replay
--imports=str                plugins
    imports to preload before .visidatarc (command-line only)
--nothing                    False
    no config, no plugins, nothing extra
--interactive                False
    run interactive mode after batch replay
--overwrite=str              c
    overwrite existing files {y=yes|c=confirm|n=no}
--plugins-autoload=bool      True
    do not autoload plugins if False
--theme=str
    display/color theme to use
--airtable-auth-token=str
    Airtable API key from https://airtable.com/account
--matrix-token=str
    matrix API token
--matrix-user-id=str
    matrix user ID associated with token
--matrix-device-id=str       VisiData
    device ID associated with matrix login
--reddit-client-id=str
    client_id for reddit api
--reddit-client-secret=str
    client_secret for reddit api
--reddit-user-agent=str      3.0.2
    user_agent for reddit api
--zulip-batch-size=int       -100
    number of messages to fetch per call (<0 to fetch before anchor)
--zulip-anchor=int           1000000000
    message id to start fetching from
--zulip-delay-s=float        1e-05
    seconds to wait between calls (0 to stop after first)
--zulip-api-key=str
    Zulip API key
--zulip-email=str
    Email for use with Zulip API key
--csv-dialect=str            excel
    dialect passed to csv.reader
--csv-delimiter=str         ,
    delimiter passed to csv.reader
--csv-quotechar=str          "
    quotechar passed to csv.reader
--csv-skipinitialspace=bool  True
    skipinitialspace passed to csv.reader
--csv-escapechar=NoneType    None
    escapechar passed to csv.reader
--csv-lineterminator=str
    " lineterminator passed to csv.writer
--safety-first               False
    sanitize input/output to handle edge cases, with a performance cost
--f5log-object-regex=NoneType None
    A regex to perform on the object name, useful where object names have a structure to extract. Use the (?P<foo>...) named groups form to get column names.
--f5log-log-year=NoneType    None
    Override the default year used for log parsing. Use all four digits of the year (e.g., 2022). By default (None) use the year from the ctime of the file, or failing that the current year.
--f5log-log-timezone=str     UTC
    The timezone the source file is in, by default UTC.
--fixed-rows=int             1000
    number of rows to check for fixed width columns
--fixed-maxcols=int          0
    max number of fixed-width columns to create (0 is no max)
--graphviz-edge-labels=bool  True
    whether to include edge labels on graphviz diagrams
--html-title=str             <h2>{sheet.name}</h2>
    table header when saving to html
--http-max-next=int          0
    max next.url pages to follow in http response
--http-req-headers=dict      {}
    http headers to send to requests
--http-ssl-verify=bool       True
    verify host and certificates for https
--npy-allow-pickle           False
    numpy allow unpickling objects (unsafe)
--pcap-internet=str          n
    (y/s/n) if save_dot includes all internet hosts separately (y), combined (s), or does not include the internet (n)
--pdf-tables                 False
    parse PDF for tables instead of pages of text
--postgres-schema=str        public
    The desired schema for the Postgres database
--s3-endpoint=str
    alternate S3 endpoint, used for local testing or alternative S3-compatible services
--s3-glob=bool               True
    enable glob-matching for S3 paths
--s3-version-aware           False
    show all object versions in a versioned bucket
--sqlite-onconnect=str
    sqlite statement to execute after opening a connection
--xlsx-meta-columns          False
    include columns for cell objects, font colors, and fill colors
--xml-parser-huge-tree=bool  True
    allow very deep trees and very long text content
--plt-marker=str            .
    matplotlib.markers
--plot-palette=str           Set3
    colorbrewer palette to use
--server-addr=str            127.0.0.1
    IP address to listen for commands
--server-port=int            0
    port to listen for commands
--fixer-api-key=str
    API Key for api.apilayer.com/fixer
--fixer-cache-days=int       1
    Cache days for currency conversions
--describe-aggrs=str         mean stdev
    numeric aggregators to calculate on Describe sheet
--hello-world=str            ¡Hola mundo!
    shown by the hello-world command
--incr-base=float            1.0
    start value for column increments
--ping-count=int             3
    send this many pings to each host
--ping-interval=float        0.1
    wait between ping rounds, in seconds
--regex-maxsplit=int         0
    maxsplit to pass to regex.split
--rename-cascade             False
    cascade column renames into expressions
--faker-locale=str           en_US
    default locale to use for Faker
--faker-extra-providers=NoneType None
    list of additional Provider classes to load via add_provider()
--faker-salt=str
    Use a non-empty string to enable deterministic fakes
--mailcap-mimetype=str
    force mimetype for sysopen-mailcap
--unfurl-empty               False
    if unfurl includes rows for empty containers

  DISPLAY OPTIONS
Display options can only be set via the Options Sheet or a .visidatarc (see FILES).

disp_menu           True
    show menu on top line when not active
disp_menu_keys      True
    show keystrokes inline in submenus
color_menu          black on 68 blue
    color of menu items in general
color_menu_active   223 yellow on black
    color of active menu items
color_menu_spec     black on 34 green
    color of sheet-specific menu items
color_menu_help     black italic on 68 blue
    color of helpbox
disp_menu_boxchars  ││──┌┐└┘├┤
    box characters to use for menus
disp_menu_more      »
    command submenu indicator
disp_menu_push      ⎘
    indicator if command pushes sheet onto sheet stack
disp_menu_input     …
    indicator if input required for command
disp_menu_fmt       | VisiData {vd.version} | Alt+H for help menu
    right-side menu format string
disp_float_fmt      {:.02f}
    default fmtstr to format float values
disp_int_fmt        {:d}
    default fmtstr to format int values
disp_formatter      generic
    formatter to create the text in each cell (also used by text savers)
disp_displayer      generic
    displayer to render the text in each cell
disp_splitwin_pct   0
    height of second sheet on screen
disp_note_none      ⌀
    visible contents of a cell whose value is None
disp_truncator      …
    indicator that the contents are only partially visible
disp_oddspace       ·
    displayable character for odd whitespace
disp_more_left      <
    header note indicating more columns to the left
disp_more_right     >
    header note indicating more columns to the right
disp_error_val
    displayed contents for computation exception
disp_ambig_width    1
    width to use for unicode chars marked ambiguous
disp_pending
    string to display in pending cells
color_note_pending  bold magenta
    color of note in pending cells
color_note_type     226 yellow
    color of cell note for non-str types in anytype columns
color_note_row      220 yellow
    color of row note on left edge
disp_column_sep     │
    separator between columns
disp_keycol_sep     ║
    separator between key columns and rest of columns
disp_rowtop_sep     │
disp_rowmid_sep     ⁝
disp_rowbot_sep     ⁝
disp_rowend_sep     ║
disp_keytop_sep     ║
disp_keymid_sep     ║
disp_keybot_sep     ║
disp_endtop_sep     ║
disp_endmid_sep     ║
disp_endbot_sep     ║
disp_selected_note  •
disp_sort_asc       ↑↟⇞⇡⇧⇑
    characters for ascending sort
disp_sort_desc      ↓↡⇟⇣⇩⇓
    characters for descending sort
color_default       white on black
    the default fg and bg colors
color_default_hdr   bold
    color of the column headers
color_bottom_hdr    underline
    color of the bottom header row
color_current_row   reverse
    color of the cursor row
color_current_col   bold
    color of the cursor column
color_current_cell
    color of current cell, if different from color_current_row+color_current_col
color_current_hdr   bold reverse
    color of the header for the cursor column
color_column_sep    246 blue
    color of column separators
color_key_col       81 cyan
    color of key columns
color_hidden_col    8
    color of hidden columns on metasheets
color_selected_row  215 yellow
    color of selected rows
color_clickable     underline
    color of internally clickable item
color_code          bold white on 237
    color of code sample
color_heading       bold 200
    color of header
color_guide_unwritten 243 on black
    color of unwritten guides in GuideGuide
disp_rstatus_fmt    {sheet.threadStatus} {sheet.keystrokeStatus}   [:longname]{sheet.longname}[/]  {sheet.nRows:9d} {sheet.rowtype} {sheet.modifiedStatus}{sheet.selectedStatus}{vd.replayStatus}
    right-side status format string
disp_status_fmt     [:onclick sheets-stack]{sheet.shortcut}› {sheet.name}[/]|
    status line prefix
disp_lstatus_max    0
    maximum length of left status line
disp_status_sep     │
    separator between statuses
color_keystrokes    bold white on 237
    color of input keystrokes
color_longname      bold 52 on 114 green
    color of command longnames
color_keys          bold
    color of keystrokes in help
color_status        bold on 238
    status line color
color_error         202 1
    error message color
color_warning       166 15
    warning message color
color_top_status    underline
    top window status bar color
color_active_status black on 68 blue
    active window status bar color
color_inactive_status 8 on black
    inactive window status bar color
color_highlight_status black on green
    color of highlighted elements in statusbar
color_working       118 5
    color of system running smoothly
color_edit_unfocused 238 on 110
    display color for unfocused input in form
color_edit_cell     233 on 110
    cell color to use when editing cell
disp_edit_fill      _
    edit field fill character
disp_unprintable    ·
    substitute character for unprintables
disp_date_fmt       %Y-%m-%d
    default fmtstr passed to strftime for date values
disp_currency_fmt   %.02f
    default fmtstr to format for currency values
color_currency_neg  red
    color for negative values in currency displayer
disp_replay_play    ▶
    status indicator for active replay
color_status_replay green
    color of replay status indicator
disp_histogram      ■
    histogram element character
disp_graph_labels   True
    show axes and legend on graph
disp_canvas_charset ⠀⠁⠂⠃⠄⠅⠆⠇⠈⠉⠊⠋⠌⠍⠎⠏⠐⠑⠒⠓⠔⠕⠖⠗⠘⠙⠚⠛⠜⠝⠞⠟⠠⠡⠢⠣⠤⠥⠦⠧⠨⠩⠪⠫⠬⠭⠮⠯⠰⠱⠲⠳⠴⠵⠶⠷⠸⠹⠺⠻⠼⠽⠾⠿⡀⡁⡂⡃⡄⡅⡆⡇⡈⡉⡊⡋⡌⡍⡎⡏⡐⡑⡒⡓⡔⡕⡖⡗⡘⡙⡚⡛⡜⡝⡞⡟⡠⡡⡢⡣⡤⡥⡦⡧⡨⡩⡪⡫⡬⡭⡮⡯⡰⡱⡲⡳⡴⡵⡶⡷⡸⡹⡺⡻⡼⡽⡾⡿⢀⢁⢂⢃⢄⢅⢆⢇⢈⢉⢊⢋⢌⢍⢎⢏⢐⢑⢒⢓⢔⢕⢖⢗⢘⢙⢚⢛⢜⢝⢞⢟⢠⢡⢢⢣⢤⢥⢦⢧⢨⢩⢪⢫⢬⢭⢮⢯⢰⢱⢲⢳⢴⢵⢶⢷⢸⢹⢺⢻⢼⢽⢾⢿⣀⣁⣂⣃⣄⣅⣆⣇⣈⣉⣊⣋⣌⣍⣎⣏⣐⣑⣒⣓⣔⣕⣖⣗⣘⣙⣚⣛⣜⣝⣞⣟⣠⣡⣢⣣⣤⣥⣦⣧⣨⣩⣪⣫⣬⣭⣮⣯⣰⣱⣲⣳⣴⣵⣶⣷⣸⣹⣺⣻⣼⣽⣾⣿
    charset to render 2x4 blocks on canvas
disp_pixel_random   False
    randomly choose attr from set of pixels instead of most common
disp_zoom_incr      2.0
    amount to multiply current zoomlevel when zooming
color_graph_hidden  238 blue
    color of legend for hidden attribute
color_graph_selected bold
    color of selected graph points
color_graph_axis    bold
    color for graph axis labels
disp_graph_tick_x   ╵
    character for graph x-axis ticks
disp_help           2
    show help panel during input
color_add_pending   green
    color for rows pending add
color_change_pending reverse yellow
    color for cells pending modification
color_delete_pending red
    color for rows pending delete
disp_sidebar        True
    whether to display sidebar
disp_sidebar_fmt    {guide}
    format string for default sidebar
disp_sidebar_width  0
    max width for sidebar
disp_sidebar_height 0
    max height for sidebar
color_sidebar       black on 114 blue
    base color of sidebar
color_sidebar_title black on yellow
    color of sidebar title
color_match         red
    color for matching chars in palette chooser
color_f5log_mon_up  green
    color of f5log monitor status up
color_f5log_mon_down red
    color of f5log monitor status down
color_f5log_mon_unknown blue
    color of f5log monitor status unknown
color_f5log_mon_checking magenta
    color of monitor status checking
color_f5log_mon_disabled black
    color of monitor status disabled
color_f5log_logid_alarm red
    color of alarms
color_f5log_logid_warn yellow
    color of warnings
color_f5log_logid_notice cyan
    color of notice
color_f5log_logid_info green
    color of info
color_xword_active  green
    color of active clue
color_cmdpalette    black on 72
    base color of command palette
disp_cmdpal_max     10
    max number of suggestions for command palette
color_shellcmd      21 on 114 green
color_colname       underline
disp_scroll_context 0
    minimum number of lines to keep visible above/below cursor when scrolling
disp_sparkline      ▁▂▃▄▅▆▇
    characters to display sparkline

EXAMPLES
    vd
launch DirSheet for current directory

    vd foo.tsv
open the file foo.tsv in the current directory

    vd -f ddw
open blank sheet of type ddw

    vd new.tsv
open new blank tsv sheet named new

    vd -f sqlite bar.db
open the file bar.db as a sqlite database

    vd foo.tsv -n -f sqlite bar.db
open foo.tsv as tsv and bar.db as a sqlite database

    vd -f sqlite foo.tsv bar.db
open both foo.tsv and bar.db as a sqlite database

    vd -b countries.fixed -o countries.tsv
convert countries.fixed (in fixed width format) to countries.tsv (in tsv format)

    vd postgres://username:password@hostname:port/database
open a connection to the given postgres database

    vd --play tests/pivot.vdj --replay-wait 1 --output tests/pivot.tsv
replay tests/pivot.vdj, waiting 1 second between commands, and output the final sheet to test/pivot.tsv

    ls -l | vd -f fixed --skip 1 --header 0
parse the output of ls -l into usable data

    ls | vd | lpr
interactively select a list of filenames to send to the printer

    vd newfile.tsv
open a blank sheet named newfile if file does not exist

    vd sample.xlsx +:sheet1:2:3
launch with sheet1 at top-of-stack, and cursor at column 2 and row 3

    vd -P open-plugins
preplay longname open-plugins before starting the session

FILES
At the start of every session, VisiData looks for $HOME/.visidatarc, and calls Python exec() on its contents if it exists. For example:

       options.min_memory_mb=100  # stop processing without 100MB free
       bindkey('0', 'go-leftmost')   # alias '0' to go to first column, like vim
       def median(values):
           L = sorted(values)
           return L[len(L)//2]
       vd.aggregator('median', median)

Functions defined in .visidatarc are available in python expressions (e.g. in derived columns).

SUPPORTED SOURCES
Core VisiData includes these sources:

tsv (tab-separated value)
Plain and simple. VisiData writes tsv format by default. See the --tsv-delimiter option.

csv (comma-separated value)
.csv files are a scourge upon the earth, and still regrettably common.
See the --csv-dialect, --csv-delimiter, --csv-quotechar, and --csv-skipinitialspace options.
Accepted dialects are excel-tab, unix, and excel.

fixed (fixed width text)
Columns are autodetected from the first 1000 rows (adjustable with --fixed-rows).

json (single object) and jsonl/ndjson/ldjson (one object per line).
Cells containing lists (e.g. [3]) or dicts ({3}) can be expanded into new columns with (and unexpanded with).

sqlite
May include multiple tables. The initial sheet is the table directory; Enter loads the entire table into memory. z^S saves modifications to source.

URL schemes are also supported:
http (requires requests); can be used as transport for with another filetype

For a list of all remaining formats supported by VisiData, see https://visidata.org/formats.

In addition, .zip, .gz, .bz2, .xz, ,zstd, and .zst files are decompressed on the fly.

AUTHOR
VisiData was made by Saul Pwanson <vd@saul.pw>.