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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)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
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