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Top Forums UNIX for Dummies Questions & Answers Validating fixed length field... Post 36143 by giannicello on Wednesday 21st of May 2003 04:16:45 PM
Old 05-21-2003
This new format website doesn't work with Netscape 4.7?Everything was jumbled up.

Just an fyi. Don't use the grep command to do this 'comparison' check (last post). It was only an experiment. You can do the same with an if-then statement.

I found that when I converted all my grep statements to a straight if-then syntax, I could validate 1000 records in maybe 4 seconds...When I left it as a grep comparison, the way I initially coded the program, it took a very long long time....up to 5 minutes depending on the number of records I had to validate.

I was just experimenting with the grep command and thought it may help but it was worse. Thought I'd just share this thought w/everyone.

Gianni
 

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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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