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Full Discussion: Searching for multiple patterns in files
Top Forums Shell Programming and Scripting Searching for multiple patterns in files Post 302398591 by zaxxon on Thursday 25th of February 2010 04:17:13 AM
Old 02-25-2010
grep does not check directories for patterns, only files. It does only descent and do recursive searches when using -R, which you don't do anyway in your example.
So you can spare out all those if/then/else/fi tests.

Also you don't have to check all files inside a for loop since grep does this on it's own when you specify a wildcard as parameter.

To see the name of the file that contains the pattern you got in your list, you can add a -l to grep.

So try something like this while standing in the directory where the supposed files are - else add some path to the wildcard accordingly:
Code:
grep -lf mypatternlist.txt *

Last edited by zaxxon; 02-25-2010 at 05:25 AM.. Reason: typo
 

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LEARN ABOUT V7

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  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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