Date: Sat, 7 Apr 2007 12:00:17 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Olivier Regnier <oregnier@steelbox.org> Cc: freebsd-questions@freebsd.org Subject: Re: script perl with sed command Message-ID: <20070407114330.D68971@wonkity.com> In-Reply-To: <4617B954.7010507@steelbox.org> References: <4617B954.7010507@steelbox.org>
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On Sat, 7 Apr 2007, Olivier Regnier wrote: > I have a problem with my perl script with the command sed. Here is a example > of my code: > > # Selecting the fast server > print "Using the server called $server"; > system(`/usr/bin/sed 's|\*default host=\(.*\)|\*default host=${server}|' > $standard_supfile > $standard_supfile.copy`); > system('/bin/mv $standard_supfile.copy $standard_supfile'); > > But in console i have this message: > sed: 1: "s|*default host=(.*)|*d ...": unescaped newline inside subsitute > pattern Most likely there is a newline at the end of $server because it was output from backticks. To fix that, you'd use chomp: chomp(my $server = `fastest_csvsup -Q -c us`); Just a general note: Perl's s/ command does more than sed's, with less hassle, and you wouldn't have to mess with shell escapes. -Warren Block * Rapid City, South Dakota USA
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