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Full Discussion: How do i tell my bash shell script to test the output of a command against something
Top Forums UNIX for Dummies Questions & Answers How do i tell my bash shell script to test the output of a command against something Post 302364369 by varontron on Friday 23rd of October 2009 12:07:44 AM
Old 10-23-2009
to do it your way, just put the result of your 'echo' line in a variable:
Code:
VAR=`echo $LINE | grep 1 | cut -c 1`
if [ $VAR -eq 1 ]

but depending on your requirement, it might be quicker to do this, which will return all the lines in 'blah' that don't contain '1':
Code:
grep -v 1 blah

 

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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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