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Full Discussion: how to store grep command in a Variable
Top Forums Shell Programming and Scripting how to store grep command in a Variable Post 302206516 by era on Wednesday 18th of June 2008 01:38:07 AM
Old 06-18-2008
What's in X, and why do you have a backslash before $A? Why do you execute X inside the backticks if you don't want its output to be included? Of course, you can redirect it just like you do with the .profile (again, the purpose of which remains unclear ... do you really want that inside the backticks?)

You have the basic syntax almost right, save for the backslash. Does the following not do what you want?

Code:
C=`netstat -na | grep "$A"`

 

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LEARN ABOUT ULTRIX

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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