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Top Forums Shell Programming and Scripting Script to validate file header and trailer Post 302668689 by agama on Monday 9th of July 2012 10:44:45 PM
Old 07-09-2012
A minimal solution:

Code:
awk -F "|" ' /^HDR/ { h++; next; } /^TRL/ { exit( (h > 1) || $NF != NR - 2 ); }' file-name

If the exit code is non-zero there is an error.
 

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Test::Exit(3pm) 					User Contributed Perl Documentation					   Test::Exit(3pm)

NAME
Test::Exit - Test that some code calls exit() without terminating testing VERSION
version 0.03 SYNOPSIS
use Test::More tests => 4; use Test::Exit; exits_ok { exit 1; } "exiting exits" never_exits_ok { print "Hi!"; } "not exiting doesn't exit" exits_zero { exit 0; } "exited with success" exits_nonzero { exit 42; } "exited with failure" DESCRIPTION
Test::Exit provides some simple tools for testing that code does or does not call "exit()", while stopping code that does exit at the point of the "exit()". Currently it does so by means of exceptions, so it will not function properly if the code under test calls "exit()" inside of an "eval" block or string. The only criterion tested is that the supplied code does or does not call "exit()". If the code throws an exception, the exception will be propagated and you will have to call it yourself. "die()"ing is not exiting for the purpose of these tests. exits_ok Tests that the supplied code calls "exit()" at some point. exits_nonzero Tests that the supplied code calls "exit()" with a nonzero value. exits_zero Tests that the supplied code calls "exit()" with a zero (successful) value. never_exits_ok Tests that the supplied code completes without calling "exit()". AUTHOR
Andrew Rodland <andrew@hbslabs.com> COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by HBS Labs, LLC.. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.10.1 2009-12-04 Test::Exit(3pm)
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