Re: Searching multiple expressions in multiple Files

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Re^2: Searching multiple expressions in multiple Files by planetscape (Chancellor) on Mar 31, 2009 at 12:44 UTC
If the OP currently lacks `fgrep` or `sort`, the following may be helpful: gnu grep egrep tcgrep Perl Power Tools Cygwin The Berkeley Utilities - 40 unix commands ported to DOS GNU utilities for Win32 Unix Utils for DOS CMD Line Tools for Windows 95/98/NT/2000/XP Batch File Utilities HTH, planetscape	[reply] [d/l] [select]
Re^2: Searching multiple expressions in multiple Files (perl-5.10 vs. fgrep) by almut (Canon) on Mar 31, 2009 at 14:35 UTC
A quick benchmark shows that `fgrep` is even about three times as fast as `perl`. (For 5.10.0, that is — with 5.8.8, the ratio is even worse... considerably!) Such a large difference is somewhat surprising (to me). I would've expected perl-5.10 to be about on par with fgrep. So, please, someone point out what I've done wrong in my benchmark... :) perl-5.10.0: `Rate perl fgrep perl 30.8/s -- -71% fgrep 106/s 246% --` [download] perl-5.8.8: `s/iter perl fgrep perl 9.38 -- -100% fgrep 3.00e-04 3124967% --` [download] (In this particular reported case, none of the search words were found in $^X (the perl binary), so all strings had to be tested.) Read more... (1180 Bytes)	[reply] [d/l] [select]
Re^2: Searching multiple expressions in multiple Files by technoz (Initiate) on Mar 31, 2009 at 13:22 UTC
Thanks for the suggestions. Unfortunately I dont have perl or the script to try upon till tomorrow. I will try and let you know the results.	[reply]