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Full Discussion: bash script error with binary operator expected.
Top Forums Shell Programming and Scripting bash script error with binary operator expected. Post 302593441 by chihung on Friday 27th of January 2012 12:10:46 AM
Old 01-27-2012
simple grep of v707 from /etc/passwd may not be exact, eg. user v707 may not exist but v7071 and v7072 may exist. Also, you may grep pattern in other fields too.

To be exact, you should use:
Code:
grep '^$vid:' /etc/passwd

or you can use 'id' to test the existence of the user:
Code:
if id $vid > /dev/null 2>&1
then
        echo " $vid User exists "
else
        /usr/sbin/useradd -g admin -G app $vid
        echo changeme |passwd --stdin $vid
fi

Last edited by chihung; 01-27-2012 at 01:18 AM..
 

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LEARN ABOUT V7

zgrep

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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