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Full Discussion: Better way to run this perl command
Top Forums Shell Programming and Scripting Better way to run this perl command Post 302648907 by SkySmart on Wednesday 30th of May 2012 01:51:16 PM
Old 05-30-2012
Quote:
Originally Posted by Corona688
perl is massively huger than grep, that's a good sign it's not going to be faster. Running it twice, that's certainly not going to be faster. Piping it into wc -l is going to be slower yet.

How about awk? Getting rid of pipes and external utilities is a good way to speed up a program, and awk can easily do everything you want here in one program with no pipes or external utilities (besides awk itself of course).
Code:
awk '/core.manager.referral/ && /ERROR getting Referral/ { N++} END { print N }' filename


thank you. i tried this, and the command is still slow to finish.

im open to any one-liner type of command like this that will be the fastest.
 

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LEARN ABOUT NETBSD

zgrep

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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