10 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
1. The problem statement:
What is the mesg value set for your environment? If it is on, how would you turn off your current
session? How would you set it permanently?
3. The attempts at a solution :
Read Unix The textbook.
3rd chapter has many things like environment variables and... (5 Replies)
Discussion started by: mahinkhan22
2. Shell Programming and Scripting
I have read tons of posts about how you can't set persisting environment variable in a child script of a shell and have it persist. The only way is to source a file as
% . <scriptname>
I am finding that true... but I know there is a way around it. I just don't know how. I worked for 6... (5 Replies)
Discussion started by: rwa25
3. UNIX for Dummies Questions & Answers
why are all environment variables represented in a fixed format regardless of the shell you use?
like $HOME $PATH etc (6 Replies)
Discussion started by: sravani
4. Shell Programming and Scripting
say i define an environment variable in a particular script (upgrade.sh).
my script is upgarde.sh and it calls another script try.sh. will this environment variable be accessible to try.sh also. if not how to I make environment variables global so that they can be used by any script. (2 Replies)
Discussion started by: lassimanji
5. Shell Programming and Scripting
If i have a variable set and exported in my pofile file will that variable be available in all shell scripts created.
Radhika. (3 Replies)
Discussion started by: radhika03
I want to create a new EV(Environment Variable) through a c program and I done this thing through setenv() method. But the newly created EV is not permanent, i.e. when I exit from the program the EV also no longer lives. But I want to make it a permanent EV for the current user. Actually I... (6 Replies)
Discussion started by: sumsin
7. UNIX for Dummies Questions & Answers
1). i would like to know what is meant by environment variables?
2). is the number of envi variables is a constant number for unix systems?
3). how to see the list of envi variables (and the values of the envi variables)in a single command?
4). if this questions were already asked... (3 Replies)
Discussion started by: sekar sundaram
8. UNIX for Dummies Questions & Answers
Is it possible somehow to unset all the environment variables which have been defined before in UNIX (Solaris).
Slava (3 Replies)
Discussion started by: spavlov
How-to get the environment variables in GNU.
getenv() only fetches the ones that you can find under export (not the ones under declare)...
best regars .David (2 Replies)
Discussion started by: Esaia
10. UNIX for Dummies Questions & Answers
what is the actual use of environment variables.
I know only PS1, LOGNAME, PS2 variables
what are the other variables & what is there use (2 Replies)
Discussion started by: indianguru
Perl::Critic::Policy::Variables::ProhibitUnusedVariablesUser Contributed Perl DocumentaPerl::Critic::Policy::Variables::ProhibitUnusedVariables(3)
Perl::Critic::Policy::Variables::ProhibitUnusedVariables - Don't ask for storage you don't need.
This Policy is part of the core Perl::Critic distribution.
Unused variables clutter code and require the reader to do mental bookkeeping to figure out if the variable is actually used or not.
At present, this Policy is very limited in order to ensure that there aren't any false positives. Hopefully, this will become more
Right now, this only looks for simply declared, uninitialized lexical variables.
my $x; # not ok, assuming no other appearances.
my @y = (); # ok, not handled yet.
our $z; # ok, global.
local $w; # ok, global.
This module is very dumb: it does no scoping detection, i.e. if the same variable name is used in two different locations, even if they
aren't the same variable, this Policy won't complain.
Have to start somewhere.
This Policy is not configurable except for the standard options.
Elliot Shank "<email@example.com>"
Copyright (c) 2008-2011 Elliot Shank.
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 v5.16.3 2014-06-09 Perl::Critic::Policy::Variables::ProhibitUnusedVariables(3)