4 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
When we write a programme,we declare variables and compiler allocates memory to them.I want to get access to the physical block number of hard-disk where actually the data is stored by the programme "
Some one help me out... (3 Replies)
Discussion started by: nagraz007
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2. Red Hat
When we write a programme,we declare variables and compiler allocates memory to them.I want to get access to the physical block number of hard-disk where actually the data is stored by the programme "
Some one help me out... (1 Reply)
Discussion started by: nagraz007
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3. Shell Programming and Scripting
Hello Everyone,
I'm a very new user to both NS-2 and awk and struggling quite a bit. I have a created a wireless trace in NS2 which is of the format as given below:
s 0.029290548 _1_ RTR --- 0 message 32 -------
s 1.119926192 _0_ RTR --- 1 message 32 -------
M 10.00000 0 (5.00,... (2 Replies)
Discussion started by: cyberalienfreak
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4. Shell Programming and Scripting
Hi All........
i need a perl script that can trace the traces of the ethereal tool. PLZ help me out...............!!!!!!!!! (1 Reply)
Discussion started by: trupti_rinku
1 Replies
LEARN ABOUT DEBIAN
log::tracemessages
TraceMessages(3pm) User Contributed Perl Documentation TraceMessages(3pm)
NAME
Log::TraceMessages - Perl extension for trace messages used in debugging
SYNOPSIS
use Log::TraceMessages qw(t d);
$Log::TraceMessages::On = 1;
t 'got to here';
t 'value of $a is ' . d($a);
{
local $Log::TraceMessages::On = 0;
t 'this message will not be printed';
}
$Log::TraceMessages::Logfile = 'log.out';
t 'this message will go to the file log.out';
$Log::TraceMessages::Logfile = undef;
t 'and this message is on stderr as usual';
# For a CGI program producing HTML
$Log::TraceMessages::CGI = 1;
# Or to turn on trace if there's a command-line argument '--trace'
Log::TraceMessages::check_argv();
DESCRIPTION
This module is a slightly better way to put trace statements into your code than just calling print(). It provides an easy way to turn
trace on and off for particular sections of code without having to comment out bits of source.
USAGE
$Log::TraceMessages::On
Flag controlling whether tracing is on or off. You can set it as you wish, and of course it can be "local"-ized. The default is off.
$Log::TraceMessages::Logfile
The name of the file to which trace should be appended. If this is undefined (which is the default), then trace will be written to
stderr, or to stdout if $CGI is set.
$Log::TraceMessages::CGI
Flag controlling whether the program printing trace messages is a CGI program (default is no). This means that trace messages will be
printed as HTML. Unless $Logfile is also set, messages will be printed to stdout so they appear in the output page.
t(messages)
Print the given strings, if tracing is enabled. Unless $CGI is true or $Logfile is set, each message will be printed to stderr with a
newline appended.
trace(messages)
Synonym for "t(messages)".
d(scalar)
Return a string representation of a scalar's value suitable for use in a trace statement. This is just a wrapper for Data::Dumper.
"d()" will exit with '' if trace is not turned on. This is to stop your program being slowed down by generating lots of strings for
trace statements that are never printed.
dmp(scalar)
Synonym for "d(scalar)".
check_argv()
Looks at the global @ARGV of command-line parameters to find one called '--trace'. If this is found, it will be removed from @ARGV and
tracing will be turned on. Since tracing is off by default, calling "check_argv()" is a way to make your program print trace only when
you ask for it from the command line.
AUTHOR
Ed Avis, ed@membled.com
SEE ALSO
perl(1), Data::Dumper(3).
perl v5.8.8 2006-05-27 TraceMessages(3pm)
