Date: Mon, 18 May 2015 09:11:11 -0400 (EDT) From: Thomas Dickey <dickey@his.com> To: FreeBSD FreeBSD <freebsd-questions@freebsd.org> Subject: Re: Problem with sed Message-ID: <1038227648.10325165.1431954671299.JavaMail.root@his.com> In-Reply-To: <20150518090051.6600f32a@seibercom.net>
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----- Original Message ----- | From: "Jerry" <jerry@seibercom.net> | To: "FreeBSD FreeBSD" <freebsd-questions@freebsd.org> | Sent: Monday, May 18, 2015 9:00:51 AM | Subject: Problem with sed | | I rarely use sed, so I admit to not being fully acquainted with its | idiosyncrasies,; however, this one is really annoying. | | I am using this command in an attempt to remove empty lines: | | $ sed -i /^$/d /var/tmp/myfile.txt you have to quote the expression to prevent the '^' and '$' characters from being interpreted by the shell, for example sed -i '/^$/d' /var/tmp/myfile.txt -- Thomas E. Dickey <dickey@invisible-island.net> http://invisible-island.net ftp://invisible-island.net
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