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Top Forums Shell Programming and Scripting Can someone please help me optimize my code (script searches subdirectories)? Post 302607362 by methyl on Wednesday 14th of March 2012 08:24:14 AM
Old 03-14-2012
Suggestions:
1) Correct the Runtime calculation!
Code:
start3=$SECONDS

2) Only search files (-type f) and use "grep -l" to get the name of the file once only. Put quotes round "$word" if it is a "phrase".
Code:
a=$(find /path/to/files -type f -exec grep -wil "$word" /dev/null {} \;)

 

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ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
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