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Full Discussion: Wildcard for grep
Top Forums Shell Programming and Scripting Wildcard for grep Post 302921819 by kraljic on Monday 20th of October 2014 12:49:54 PM
Old 10-20-2014
Wildcard for grep

GNU grep with Oracle Linux 6.3

I want to grep for strings starting with the pattern ora and and having the words r2j in it. It should return the lines highlighted in red below.
But , I think I am not using wildcard for multiple characters correctly.

Code:
$ cat someText.txt
ora_pmon_jcpprdvp1
ora_pmon_CDRTEST1
ora_pmon_CDRVP1
ora_pmon_r2jmqsit1
ora_pmon_r2jcpsit1
ora_pmon_mpiprdvp1
ora_pmon_mpisit1
ora_pmon_jcpsit1
ora_pmon_cdrsit1
$
$
$ grep ora*r2 someText.txt
$
$
$
$ grep "ora*r2" someText.txt
$

 

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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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