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Full Discussion: A question about if statement
Top Forums Shell Programming and Scripting A question about if statement Post 302579145 by balajesuri on Monday 5th of December 2011 12:43:17 AM
Old 12-05-2011
$? is the exit status of the last command executed. Check the below post:
https://www.unix.com/unix-dummies-que...it-status.html

You may try something like this:
Code:
#! /bin/bash

verify()
{
    # do something
    grep -q 'VERIFICATION SUCCESSFUL' result.txt
    verify_exit_status=$?
}

verify

if [ $verify_exit_status -eq 0 ]; then
    echo debug
fi

By the way, what did you mean by this:
Quote:
return $(grep -q 'VERIFICATION SUCCESSFUL' result.txt)
This User Gave Thanks to balajesuri For This Post:
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LEARN ABOUT PLAN9

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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