For the first part you are right. For the second not really... To understand those two lines of code easier, run this script:
It will result in this:
As you can see first line of code resulted in one more "level" of reference. This is because it created single element array that it's only element is reference to array containing references to lower level arrays. In simple words, first code is not what you would usually want to use
if {"$my_ext_type" = MAIN]; then
cd $v_sc_dir
Filex.SH $v_so_dir\/$v_fr_file
Can somebody tell me what does this suggest. I am pretty new to unix and
I am getting confused.
What i understood from here is
If we have a file extension name as MAIN
which we have then we change the directory to... (1 Reply)
Hi all.
The startup script in /usr/local/bin.
After user login the script run an application.
Iwould in the same way run the another application.
How to make It similar?
Where I must to look?
Regards. (3 Replies)
I learn using RS in awk to extract portion of file in this forum which is wonderful solution to the problem. However, I don't understand how exactly it operates.
I don't quite understand the mechanism behind how searching for /DATA2/ can result in extracting the whole section under "DATA2"
... (3 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
1)find all lines in file ,myf that contain all the words cat dog and mouse in any order and start with the letter... (1 Reply)
I have a text file called file1 which contains the text: "ls -l"
When I enter this command:
bash < file1 > file1
file1 gets erased. However if I enter this command:
bash < file1 > newfile
the output from "ls -l" is stored in newfile. My question is why doesn't file1's text ("ls -l") get... (3 Replies)
this is my program i am trying to compile
/* filedata -- display information about a file */
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
/*
* use octarray for determing
* if permission bits set
*/
static short octarray = {0400, 0200, 0100,... (2 Replies)
Hi there,
I have a very general question. I'm rather new to (bash) shell scripting and I don't understand how conditions work... I've read numerous tutorials but I don't get it. I really don't. Sometime what I do works, sometime it doesn't and that's frustating. So what's the actual difference... (0 Replies)
Hello,
I have the following script :
BEGIN {
print "1 ***";
split("abc",T,"");
T="e";
T="z";
T="y";
for (i in T) printf("%i:%s ",i,T); print "";
for (i=1; i<=length(T); i++) printf(T); print ""
print "2 ***";
asort(T,U);
for (i in U) printf("%i:%s ",i,U); ... (3 Replies)
Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixeUserlContributPerl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators(3)NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators - Write " !$foo && $bar || $baz " instead of " not $foo && $bar
or $baz".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway advises against combining the low-precedence booleans ( "and or not" ) with the high-precedence boolean operators ( "&& || !" ) in
the same expression. Unless you fully understand the differences between the high and low-precedence operators, it is easy to misinterpret
expressions that use both. And even if you do understand them, it is not always clear if the author actually intended it.
next if not $foo || $bar; #not ok
next if !$foo || $bar; #ok
next if !( $foo || $bar ); #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.320Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators(3)