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Top Forums UNIX for Dummies Questions & Answers File validation prior to continuing script Post 302931548 by MadeInGermany on Tuesday 13th of January 2015 05:46:21 PM
Old 01-13-2015
Proposal:
Code:
if grep -nv '^44[0-9]\{10\}$' filename
then
 echo 'Please check the above line(s).'
 exit
fi
echo ...


Last edited by MadeInGermany; 01-13-2015 at 06:53 PM..
 

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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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