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Full Discussion: How to search all the files in a directory for a specific string
Top Forums UNIX for Dummies Questions & Answers How to search all the files in a directory for a specific string Post 302380087 by pludi on Monday 14th of December 2009 07:33:45 AM
Old 12-14-2009
Quote:
Originally Posted by vikas898
Code:
grep -i "string" `find ./ -name "*.txt"`

That approach has 2 potential problems:
  1. The *.txt glob will be expanded if there are files with the txt extension in the current directory, screwing up the find command.
  2. If find returns too many files, grep/the shell will refuse running and complain about a too large argument list

Also, I'd advise anyone against using backticks and use the $() construct instead, as it's less likely to be misinterpreted, and can be nested multiple times.
 

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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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