When i run my perl/tk script, a perl window pops up behind the GUI window,, can this be hidden????
Also, can the Icon be changed, the Tk icon in every window??? (1 Reply)
If I use 2 system commands in a script, will one finish before the next one starts? or will it start the first and the second at the same time?
i.e.
system("ps | grep rminer");
system("ls -al | grep 431"); (1 Reply)
Hello,
pkzipc of a certain zip file yeilds the following in shell
PKZIP(R) Version 6.0 FAST! Compression Utility for AIX
Copyright 1989-2002 PKWARE Inc. All Rights Reserved. Registered Version
PKZIP Reg. U.S. Pat. and Tm. Off. Patent No. 5,051,745
Viewing .ZIP: test.zip
Length... (13 Replies)
I copy and paste from the book but this thing is not working.
I cannot figure out what is wrong with myline 9.. can someone please tell me
# cat ./sort4.pl
#!/usr/bin/perl -w
use strict;
use warnings;
my $input = shift;
my $output = shift;
open(IN, '<', $input) or die... (4 Replies)
Below program, I do not get why item I am looking for is , instead of .
When I do $#text, i get the right value for $value1, but when I do , i get somsething4, instead of
somsethingxxxxxxxxxxxxxxxxxxx(which is what I am looking for.
when I do , I get empty.. why? what did I do wrong? can you... (2 Replies)
I fail to see how below answer is 1? can someone explain this for me?
DB<3> $string = "The cat sat on the mat";
DB<4> $animal = ($string =~ m/The (.*) sat/);
DB<5> print $animal;
1 (2 Replies)
I have a question regarding bulding a hash from a file which has below pattern
I thought I could write something like this but clearly my syntax is way off
$/ = "\n\n";
$" = "\n";
open(FILE, file1) || die;
my %keymaster = ( );
while (<FILE>) {
my $topinfo =~... (5 Replies)
I am reading a file in perl script .. during the debug the $linein value is :
linein : +ASM1,sys,||¬ |3Æqúoü;”ט||
from this line I am getting the tmepuser and password from above :
($tmpuser, $pwd) = ($linein =~ /^$server\s*,\s*(+)\s*,\|\|(.+)\|\|/sm);
I am getting $tmpuser and... (2 Replies)
Hello everybody, I am new at the forum and a total newbie when it comes to Unix.
I am trying to see how I can add the ability to kill a user's processes?
I want to add this to my Shel Script Add the code/process into a subroutine.
Also, I would like to use an array to store the list... (0 Replies)
Perl::Critic::Policy::Variables::RequireNegativeIndices(User Contributed Perl DocumentPerl::Critic::Policy::Variables::RequireNegativeIndices(3pm)NAME
Perl::Critic::Policy::Variables::RequireNegativeIndices - Negative array index should be used.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway points out that
$arr[$#arr];
$arr[$#arr-1];
$arr[@arr-1];
$arr[@arr-2];
are equivalent to
$arr[-1];
$arr[-2];
$arr[-1];
$arr[-2];
and the latter are more readable, performant and maintainable. The latter is because the programmer no longer needs to keep two variable
names matched.
This policy notices all of the simple forms of the above problem, but does not recognize any of these more complex examples:
$some->[$data_structure]->[$#{$some->[$data_structure]} -1];
my $ref = @arr;
$ref->[$#arr];
CONFIGURATION
This Policy is not configurable except for the standard options.
AUTHOR
Chris Dolan <cdolan@cpan.org>
COPYRIGHT
Copyright (c) 2006-2011 Chris Dolan.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-06-07 Perl::Critic::Policy::Variables::RequireNegativeIndices(3pm)