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Full Discussion: issue with if loop in perl
Top Forums Shell Programming and Scripting issue with if loop in perl Post 302156484 by cbkihong on Tuesday 8th of January 2008 08:40:35 AM
Old 01-08-2008
Quote:
Originally Posted by amitrajvarma
while (<FILE>) {

$t = 0;
if (/cp c2960-lanlitek9-mz \/tftpboot\/$u\/c2960-lanlitek9-mz/) {
$t = 1;
}

if ( $t == 1 ) {

print "$c2960[5]\n";
open(OUTFILE,">>$of1") || die "cud not write";
print OUTFILE "c2960-lanlitek9-mz\n";
close(OUTFILE);
last;

} elsif ( $t == 0 ) {

print "NO $c2960[5]\n";
open(OUTFILE,">>$of2") || die "cud not write";
print OUTFILE "c2960-lanlitek9-mz\n";
close(OUTFILE);
last;

} else { }

} ## end of while crypto log
close(FILE);
You still have not mentioned what is your expected behaviour. Please be reminded that your script is very customized and will not run on others' machines, you should provide enough information for others to help you.

Unless you provide us with your expectations, I will just offer some general advise:

As the if block depends on $t and in turn from the pattern matching above, you should first make sure the matching result is correct.

Next, if the file cannot be written into and shows 'cud not write', consider die'ing with

die $!

instead to have the exact error message printed for debug. I also advise you to print $of1 and $of2 and ensure the values are as expected, as I cannot understand why you chomp() a static string. It is harmless, but that does not make sense:

Code:
$of1="\/users\/$u\/success.txt";
$of2="\/users\/$u\/failed.txt";
chomp($of1);
chomp($of2);

 

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BESPP(1)							   User Commands							  BESPP(1)

NAME
bespp - pretty print a BES SYNOPSIS
bespp [OPTION]... [INFILE [OUTFILE]] DESCRIPTION
Print the BES in INFILE to OUTFILE in a human readable format. If OUTFILE is not present, stdout is used. If INFILE is not present, stdin is used. OPTIONS
OPTION can be any of the following: -fFORMAT, --format=FORMAT print the PBES in the specified FORMAT: 'default' for a PBES specification (default) --timings[=FILE] append timing measurements to FILE. Measurements are written to standard error if no FILE is provided Standard options: -q, --quiet do not display warning messages -v, --verbose display short intermediate messages -d, --debug display detailed intermediate messages --log-level=LEVEL display intermediate messages up to and including level -h, --help display help information --version display version information AUTHOR
Written by Jeroen Keiren. REPORTING BUGS
Report bugs at <http://www.mcrl2.org/issuetracker>. COPYRIGHT
Copyright (C) 2012 Technische Universiteit Eindhoven. This is free software. You may redistribute copies of it under the terms of the Boost Software License <http://www.boost.org/LICENSE_1_0.txt>. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
See also the manual at <http://www.mcrl2.org/mcrl2/wiki/index.php/User_manual/bespp>. bespp mCRL2 toolset 201202.0 (Release) April 2012 BESPP(1)
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