Date: Thu, 7 Dec 2017 00:55:42 +0000 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: grep problem Message-ID: <20171207005542.43a7f55f@gumby.homeunix.com>
next in thread | raw e-mail | index | archive | help
Can anyone explain why '-' needs escaping in the following. What special meaning does it have outside of []? $ echo 'a-b' | grep 'a-b' a-b $ echo 'a-b' | grep '-b' Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. $ echo 'a-b' | grep '\-b' a-b
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20171207005542.43a7f55f>