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Full Discussion: Wildcards in VI
Top Forums UNIX for Dummies Questions & Answers Wildcards in VI Post 12600 by auswipe on Thursday 3rd of January 2002 05:54:32 PM
Old 01-03-2002
Quote:
Originally posted by peter.herlihy
Ah...ooops...there are some that do start with S....

But all those that start with S[0-9] should be removed - those that start S[A-Z] should remain.

Also another way might be looking for any rows with [0-9] appearing in them anywhere - as these too will satisfy the criteria.

.....

Smilie
I couldn't find any simple way of a mass deletion in vi using a regexp, but I am sure that somebody out there has that knowledge...

How about using :

Code:
grep -v "^S[0-9].*" oldfile > newfile

The file, newfile will be devoid of entries that start with S[0-9].

I use `grep -v` all the time to remove undesired entries from logfiles and it normally works like a champ.
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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