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Full Discussion: grep lines separated with semicolon
Top Forums Shell Programming and Scripting grep lines separated with semicolon Post 302679325 by satin1321 on Monday 30th of July 2012 04:49:28 PM
Old 07-30-2012
grep lines separated with semicolon
Hello,

I would like to kindly ask you for help. I have a file with some lines in one row separated by semicolon. I need to find out, if the line I have in different variable is included in this file. e.g

I have a file foo.txt with lines
Code:
A=hello there;hello world;hello there world

In the my shell script I grep the lines separated with semicolon like:
Code:
CONST_A=`cat foo.txt | grep "A=" | cut -d "=" -f1`

CONST_A now contains:
Code:
hello there;hello world;hello there world

Now I have different variable, which contains string "hello there" and I want to find if the constant contains exactly this string. What would be the best way to do that? Is it grep or awk? And how? Thank you very much for your answer.
 

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LEARN ABOUT POSIX

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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