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Full Discussion: Help with grep
Top Forums UNIX for Dummies Questions & Answers Help with grep Post 302355434 by oires1228 on Tuesday 22nd of September 2009 05:35:56 PM
Old 09-22-2009
Help with grep

I'm not the greatest with Linux so I'm hoping someone could offer there assistance. I currently have several thousand files in a directory and I have a txt file that contains several hundred computer names. I need to search each file in the directory for the computer names located in the computername file.

So I know how to do
grep mywordgoes here * and this will search every file in the directory. But what i want to do is type something along the lines of...
grep computernamefile.txt * > output.txt
I understand that this is not correct, how could I have the contents of my computernamefile.txt automatically searched for, that way I don't have to type each computername into the grep command??
Any help or guidance is appreciated.
 

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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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