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Full Discussion: Doubt in find command
Top Forums Shell Programming and Scripting Doubt in find command Post 92304 by pixelbeat on Friday 9th of December 2005 07:16:06 AM
Old 12-09-2005
The 2 find commands work differently as
the second passes 2 files to grep for
each invocation, in which case grep outputs
the filenames to distinguish. Yes it's a hack.

A better/more efficient option is to pass
as many filenames as possible to grep
to minimise the number of times it is invoked.
xargs is the tool you want for this:

find . -type f -print0 | xargs -r0 grep -F error
 

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LEARN ABOUT LINUX

zegrep

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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