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 NAME     
 |  |  |  | 9, 9.rc, u, u.rc – run Plan 9 or Unix commands 
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 SYNOPSIS     
 |  |  |  | 9 cmd [ args ... ] 
    
    
    . 9 (from sh(1)) 
    
    
    9.rc cmd [ args ... ] 
    
    
    . 9.rc (from rc(1)) 
    
    
    u cmd [ args ... ] 
    
    
    . u (from sh(1)) 
    
    
    u.rc cmd [ args ... ] 
    
    
    . u.rc (from rc(1)) 
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 DESCRIPTION     
 |  |  |  | Because Plan 9 supplies commands with the same name as but different
    behavior than many basic Unix system commands (e.g., grep, sed,
    mkdir, rm), it is not recommended to run with the Plan 9 bin directory
    ahead of the system directories. 
    
    
    9 is a shell script that sets up a Plan 9 environment and runs
    cmd . It sets $PLAN9 if necessary and adds $PLAN9/bin to the beginning
    of $PATH before running cmd. 
    
    
    If run with no arguments, 9 does not do anything, so it can be
    invoked from sh-style shells using . 9 in order to make the current
    shell start running in the Plan 9 environment. 
    
    
    9.rc is the same as 9 but written for use by the shell rc(1).
    
    
    
    U and u.rc are the inverse of 9 and 9.rc: they move $PLAN9/bin
    to the end of the path. 
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 EXAMPLES     
 |  |  |  | Search for greek in the password file: 
 Start an rc(1) with the Plan 9 commands in the path before the
    system commands, and then run the Unix ls:|  |  |  | $ 9 grep '[α−ζ]' /etc/passwd 
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 SOURCE     
 SEE ALSO    
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