Date: Fri, 12 Mar 1999 09:29:45 -0800 From: Graeme Tait <graeme@echidna.com> To: "questions@FreeBSD.ORG" <questions@freebsd.org> Subject: Use of pipe with gzip | more Message-ID: <36E94F09.C8A0DA32@echidna.com>
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I was examining a large gzipped text file (about 6MB zipped) using $ gzip -cd file.gz | more and used "/[text]" to attempt to find a line that didn't exist. As indicated by top, "more" consumed all available CPU for a very long time, its PRI value rising to over 100 before it finally reported "Pattern not found". The elapsed time was a couple of orders of magnitude more than if I had unzipped the file first, and then run "more" on the unzipped file. However, some files I do this on are so large that unzipping first places a burden on available file space. Is this a legitimate use of a pipe? In other situations, piping output from "gzip -cd" through other commands to "more", I've encountered quasi-infinite waits, and ended up aborting the command. -- Graeme Tait - Echidna To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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