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Full Discussion: Grep multiple words in a file with help of fixed string switch
Top Forums UNIX for Beginners Questions & Answers Grep multiple words in a file with help of fixed string switch Post 303042041 by g_eashwar on Thursday 12th of December 2019 02:38:16 AM
Old 12-12-2019
Grep multiple words in a file with help of fixed string switch
I have multiple strings in a file which have special character $, when i search strings by ignoring $ with \ using single quotes it returns empty results.

My search strings are set char_1($lock) and set new_char_clear_3($unlock)

I tried searching with

Quote:
fgrep 'set char_1($lock)\|set new_char_clear_3($unlock)' filename.txt
but it returns empty results.However the following command gives results for 1st string

Code:
fgrep 'set char_1($lock)' filename.txt

Tried with grep -F as well which return same results as above.

How do i get both results with single command.
Last edited by rbatte1; 12-12-2019 at 10:09 AM.. Reason: Added ICODE tags
 

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LEARN ABOUT LINUX

bzfgrep

BZGREP(1)						      General Commands Manual							 BZGREP(1)

NAME

       bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression

SYNOPSIS

       bzgrep [ grep_options ] [ -e ] pattern filename...
       bzegrep [ egrep_options ] [ -e ] pattern filename...
       bzfgrep [ fgrep_options ] [ -e ] pattern filename...

DESCRIPTION

       Bzgrep  is  used to invoke the grep on bzip2-compressed files. All 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  bzgrep  is  invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, bzgrep
       uses it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	bzgrep string files
	   for csh: (setenv GREP fgrep; bzgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.

SEE ALSO

       grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1)

																	 BZGREP(1)
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