I've been stuck for several days on this. Using grep on a command line, I can use quotes, eg...
I want to do this in my bash script. In my script I have captured the several command line arguments (eg arg1 arg2) into a variable:
I guess this is an array variable consisting of arg1, arg2 etc. I try to use it later on data piped into grep...
This doesn't work -- grep sees arg1 and arg2 of my variable separately and interprets it as 'grep pattern[arg1] filename[arg2]'. Consequently it errors saying "file [arg2] not found".
So I tried using quotes on the script line, as I would on the command line...
but it then seems to treat $variable literally and greps on the actual name of the string, so returns no results.
I've tried backslashed quotes....
but that doesn't work either, it thinks arg2 is a filename again.
Any ideas on the way to do this?
Thanks,
Adrian.
Last edited by Franklin52; 07-11-2012 at 05:36 PM..
Reason: Please use code tags for data and code samples, thank you
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Discussion started by: pavan
2 Replies
LEARN ABOUT OPENDARWIN
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 is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, 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 zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)