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Full Discussion: if-then
Top Forums UNIX for Dummies Questions & Answers if-then Post 302159005 by ghostdog74 on Wednesday 16th of January 2008 09:32:40 PM
Old 01-16-2008
Quote:
Originally Posted by akilayko
hello.

can someone please help me find out what is wrong with this if-then statement? this is a bourne shell script.

if [ w -h | grep $uname | wc -l = 0 ]; then
exit 0
fi

thank you for your help
Code:
if [ `w -h | grep root | wc -l` -eq 0 ];then
 echo "do something"
fi

 
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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