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Full Discussion: perl questions
Top Forums Shell Programming and Scripting perl questions Post 302137409 by cbkihong on Monday 24th of September 2007 09:37:07 PM
Old 09-24-2007
1. If your files are strictly numbered like that, you can do a readdir() to get the list of files in the directory, sort it, and then keep a running counter that increments the counter by 1 each time. If it matches the next item read, then there is no missing file. I can think of a couple more options, but this one is probably the easiest.

2. The grep() function will do it.

grep - perldoc.perl.org
 

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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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