Hi
I'm using Linux, in the directory /root/my
there is a.out. but when I try to run it , the
shell indicate "bash:a.out: command not found"
but I AM working in this directory. if I use
"./a.out" , it works perfectly.
can any body tell me how to do a permanent set up so that
I can use... (5 Replies)
Installed a program, need to set the system up so that when the executable is entered, it finds the path to the executable. In Windows, set under system properties, advanced, environmental variables. How do I do this with Unix? Specifically using Solaris 9. I have tried:
env... (3 Replies)
hi,
I am writing c++ code in unix operating system.In that i need to set the environment variable in unix.
suppose previously i have environment variable like path="something" now i need to change the path value to some othervalue . so that some other program will access that path value... (1 Reply)
Hi,
I am quite new to Linux. And I have doubt how to set new environment variable with value to a C executable.
Let say I have a environment variable $Hack ;
I would like to load a value for this variable; so that when the C executable is executed, the $Hack would set the variable value.
... (4 Replies)
I don't use perl very often, and am stuck on how to create a perl variable from a literal and an environment variable;
eg
$FILE='/u/output'+env($UNIQUE_ID);
Also how does the Apache web server create the UNIQUE_ID environment variable, and will an 8 character substring from 3 to 10 incl, in... (2 Replies)
I am working with solaris 9 sunBlade150 Box.
I Installed a program, need to set the environment variable so that when the executable is entered,it finds the path to the executable.
The documentation for the software says: Set the appropriate environment variable:
Connect to server failed;... (8 Replies)
Hi,
I can run shell script from the command line using
$ . set
If the run the script inside perl script using
$var = system("set");
print $var;
This prints 0.
This command sets up the environment from command line. But when used inside the shell script or perl script it... (2 Replies)
i have two machines that should be identical but on one system there are some oracle environment (ORACLE_SID, ORACLE_HOME, etc...) variables that are not being set for the users.
I am trying to find where those environment variables are being set on the system which is working properly. All... (5 Replies)
Hi
Could you please tell me how to set environment variables in Unix ksh.
And how can acess those varibles in shell scripts
( Please give the code with an example)
For my scenario.
We have written number of shell scripts with hard coded username and password.
But if we want to... (1 Reply)
I just started a new job and I've been tasked with cleaning up the files that set up all the environment variables. The system works as is. What happens is:
1. You log in to the server.
2. You call a file that sets a bunch of environment variables and that displays a list of all the databases... (4 Replies)
Discussion started by: Keyeh
4 Replies
LEARN ABOUT MOJAVE
env5.18
Env(3pm) Perl Programmers Reference Guide Env(3pm)NAME
Env - perl module that imports environment variables as scalars or arrays
SYNOPSIS
use Env;
use Env qw(PATH HOME TERM);
use Env qw($SHELL @LD_LIBRARY_PATH);
DESCRIPTION
Perl maintains environment variables in a special hash named %ENV. For when this access method is inconvenient, the Perl module "Env"
allows environment variables to be treated as scalar or array variables.
The "Env::import()" function ties environment variables with suitable names to global Perl variables with the same names. By default it
ties all existing environment variables ("keys %ENV") to scalars. If the "import" function receives arguments, it takes them to be a list
of variables to tie; it's okay if they don't yet exist. The scalar type prefix '$' is inferred for any element of this list not prefixed by
'$' or '@'. Arrays are implemented in terms of "split" and "join", using $Config::Config{path_sep} as the delimiter.
After an environment variable is tied, merely use it like a normal variable. You may access its value
@path = split(/:/, $PATH);
print join("
", @LD_LIBRARY_PATH), "
";
or modify it
$PATH .= ":.";
push @LD_LIBRARY_PATH, $dir;
however you'd like. Bear in mind, however, that each access to a tied array variable requires splitting the environment variable's string
anew.
The code:
use Env qw(@PATH);
push @PATH, '.';
is equivalent to:
use Env qw(PATH);
$PATH .= ":.";
except that if $ENV{PATH} started out empty, the second approach leaves it with the (odd) value "":."", but the first approach leaves it
with ""."".
To remove a tied environment variable from the environment, assign it the undefined value
undef $PATH;
undef @LD_LIBRARY_PATH;
LIMITATIONS
On VMS systems, arrays tied to environment variables are read-only. Attempting to change anything will cause a warning.
AUTHOR
Chip Salzenberg <chip@fin.uucp> and Gregor N. Purdy <gregor@focusresearch.com>
perl v5.18.2 2013-11-04 Env(3pm)