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Top Forums UNIX for Advanced & Expert Users penalty for case insensitive grep Post 302499837 by Corona688 on Friday 25th of February 2011 01:45:13 PM
Old 02-25-2011
Quote:
Originally Posted by phil518
It is GNU grep. Wow, 200 times longer for case insensitive grep. Those routines sound very heavy.
Imagine every possible language UTF8 supports, including ones where a letter's "case" has strict and complicated rules. All of that's what you're asking grep to check for when doing case-insensitive on UTF8. Smilie
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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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