Date: Thu, 10 Jul 1997 09:08:24 -0400 From: Dennis Rockwell <dennis@bbn.com> To: Simon N Atkin <simat@enta.net> Cc: freebsd-questions@freebsd.org Subject: Re: SED remove from live file Message-ID: <199707101305.JAA01957@po3.bbn.com> In-Reply-To: Message from Simon N Atkin <simat@enta.net> <33C3F7B9.5636@enta.net> .
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On 9 Jul, Simon N Atkin wrote: > Anyone know how to remove a certain string from a file > without having the create a tmp file. > > i.e sed "s/\.//g" simat.dat strip all . 's from simat.dat Sheesh, you guys. I must've started with UNIX too long ago, back when "ed" was useful. The simplest way is *not* to use sed, but use "ed -" instead: echo '1,$s/\.//g\ w\ q' | ed - simat.dat This quoting works for tcsh; YMMV. Yes, yes, ed will create a temp file, but not in the current directory, and it takes care of deleting it for you. The renaming suggestions momentarily suck up twice as much space in the current directory. Why do you want to avoid the temp file? Is "simat.dat" waaay too big or something? Or were you avoiding the cleanup? Dennis Rockwell dennis@bbn.com Bolt Beranek & Newman Systems & Technologies +1-617-873-5745 Cambridge, MA +1-617-873-6091 (Fax)
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