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Full Discussion: Whats wrong with this 5 line script!
Top Forums Shell Programming and Scripting Whats wrong with this 5 line script! Post 302073015 by tmarikle on Tuesday 9th of May 2006 02:16:29 PM
Old 05-09-2006
Sorry, I was only prompting you to examine the code (through the trace) since the error is clear. I really don't know what you are trying to acheive with "$user | grep [0-9]". Nothing will be "grep'd" because KSH doesn't know that you are trying to grep anything. KSH thinks that this is one big string. Your test needs to be along the lines of this:

[ $(some shell commands like piped through grep) -eq 0 ]

You are going to run into more problems since "$user" is treated as a command when inserted into $(); I'm certain that you want to echo this through grep.
 

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LEARN ABOUT LINUX

zegrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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