General :: Exporting Environment Variables In Ubuntu?
Jun 2, 2010
I know many people have asked about environment variables before, but I am having a hard time dealing with these paths while ensuring I don't mess around with the original settings. How would you go about executing these commands in Ubuntu in terms of environment variables?
put /home/stanley/Downloads/ns-allinone-2.34/bin:/home/stanley/Downloads ns-allinone-2.34/tcl8.4.18/unix:/home/stanley/Downloads/ns-allinone-2.34/tk8.4.18/unixinto your PATH environment; so that you'll be able to run itm/tclsh wish/xgraph.
IMPORTANT NOTICES:
(1) You MUST put
/home/stanley/Downloads/ns-allinone-2.34/otcl-1.13,
/home/stanley/Downloads/ns-allinone-2.34/lib,
into your LD_LIBRARY_PATH environment variable.
[Code]....
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May 12, 2010
I'm aware that one can export make variables to other makefiles; however, how does one export them to the environment of $(shell)? Take the example below:
Code:
export TEST
VARIABLE=$(shell echo $$TEST)
.PHONY: all
all:
#$(VARIABLE)
In this example, I might call make TEST=test. The goal is for $TEST to be available to the environment of the shell escape. This is because I need its value in a script which is called. For example:
Code:
VARIABLE=$(shell i-need-TEST.sh)My current solution is the following:VARIABLE=$(shell export TEST="$(TEST)"; i-need-TEST.sh) but this only works if I know all if the variables needed at that point (as opposed to being able to export variables in included makefiles.) Is there an easy solution?
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Jun 7, 2011
I have sles 10 . A user has a default shell of tcsh. I want to run a script which has to use ksh . In that script only some variables are exported, which will be used in subsequent scripts which are called inside it.
But the variables are not exported. I am unable to find whether its a conflict of shell or what ?? I tried with debug mode, it only displays the command but not execute anyone ..
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May 20, 2010
I am running Red Hat Linux Enterprise 5; I am always using the export command to set environment variables.Are there any other ways to set environment variables and what are the advantages/disadvantages of them?
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Jun 21, 2010
he $g09root is picked up ( in both the csh and the bash), but not the $GV_DIR or the $GAUSS_SCRDIR. I guess it's some stupid error, but it is highly frustrating.Here is the .profile file:Quote:
# To make use of this feature, simply uncomment one of the lines below or
# add your own one (see /usr/share/locale/locale.alias for more codes)
#
[code]...
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Sep 4, 2010
I am running an application which requires setting environment variables to be set.At the moment, the way I am achieving this is by exporting the EV at the command line, and then running the app from the command line.I want to be able to run the app from my menu (it is already a menu item after I installed it).How may I set the env var so that it is always available, so I can just run the app from the menu instead of from the CLI?
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Apr 16, 2011
I am trying to include my directory /usr/sbin in it's serch path for executable files using an environment variable. Would the input be: PATH="/usr/sbin"? And also upon start up, my shell should create the PRINTER environment variable which should resolve to the word sales...would that input be: PRINTER="sales"? If someone could help me with these two questions,
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Jul 13, 2010
I have bunch of environment variables that i have to set always for my work.Someone mentioned i can write a script to dp this and i googled it but haven't been successful so far and have to manually do them every time. I have a tcsh shell.I read that i need to change the .login or .tcshrc files but havent been successful in finding these.
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Jun 15, 2010
I can setup variables in ~/.bashrc for my own shells. I can also setup variables globally in /etc/bashrc.but then how do I setup variables for a group in Linux? So that users who belong to this group will see the variables, but not others?
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Oct 27, 2010
I want to export the env variables in a file using a script,i tried using the below:for var in 'env'
do
var2=env|awk -F '=' '{print$1}'
echo "$var;export $var2">file.txt
[code]...
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Nov 9, 2010
How do I concatenate two environment variables in bash?
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Aug 25, 2011
I was using the command export, but it looks that after some time the set variables disappears. What is the easiest way of setting an environment variable forever?
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Mar 18, 2010
I'm looking for a way to set arbitrary environment variables for my graphical login on linux. I am not talking about starting a terminal and exporting environment variables within the terminal, because those variables only exist within that one terminal. I want to know how to set an environment variable that will apply to all programs started in my graphical session.
In other words, what's the Xorg equivalent of ~/.bash_login?
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Jan 2, 2011
I am using Linux some years, but since I built a LFS, I feel noobish again. Now with the help of BLFS I am setting up my environment and somewhere I incidentally read, that not every variable is inherited by a child Bash shell. As for the $PS1 and $PS2 variables I know, that they are not inherited by non-interactive Bash shells (and there is no reason why they should in my opinion). Well, as for my first thread I hope the title gives enough information on what I want to know. But anyways: Which environment variables are not inherited by Bash shells?
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Jun 2, 2011
I have been give a task of replicating one of our production systems to create a test system. I have been restricted to use c shell to set up its environment variables. I am new to this my questions is how do i set environment variables for a particular user on c shell e.g ORACLE_HOME and ORACLE_SID permanently for a particualar user i know in bash you edit the .bash_profile file. What do i do for c shell?
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May 21, 2010
Sometimes it is possible to trick a Linux app by calling it like this:
HOME=/tmp/foo myapp
This would make myapp think /tmp/foo is the home directory, it won't try to get the user id, find its home directory via getpwent(). This is useful when myapp must be forced to dump some of its config files into a non-standard location different than ~.
A similar trick can be done like this: LANG=foo LC_ALL=bar myapp
This is useful when myapp needs to be called once with a different locale without having to make the change persistent by using the export bash built-in or even modify stuff in /etc/profile.
Is it possible to pull the same trick with time and date? The goal is to make an app use another time than the system ones. The final goal - to make timestamps that appear in logs/commit messages not being tied to the system time.
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Sep 22, 2011
I often need to change a small part of long environment variable (especially, e.g., paths), and do it either by pasting the thing into an editor and changing it there, or the equivalent.
Is there some small convenience utility to edit environment variables with a cursor on the command line?
I suppose I could always whip one up, but am hoping there's already something that I'm just not aware of.
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May 18, 2010
I just installed valgrind on my Fedora12 machine.
$ valgrind // 1
$ valgrind: Command not found. //error
$ /usr/local/bin/valgrind // 2 works fine
[code]...
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Feb 12, 2010
In terminal, I use the command " export XXX="xxx" " to create a new environment variable, and then " env | grep XXX " to check if it is existed. But when I run the terminal again, the variable I created is disappeared. I've found it just can't save the variables I created..
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Apr 7, 2010
I've created a new environment variable and updated another one (PATH). I just want to save this changes once after reboot and forever. This is because I want to run a program (tecplot) just typing 'tec360' in the command line. If I create those new variable ( TEC_360_2008=/usr/tec360_2008 ) and update the PATH variable ( export PATH=$PATH:$TEC_360_2008/bin ) then bash detect the command 'tec360' and it runs my program. The problem is that this changes are not saved after rebooting.
According to the manual, I have to update the .bash_profile in my home directory but I don't have this file in this directory (neither in other directory). I only have .bash_history, .bash_logout and .bashrc in the home directory. I have updated .bashrc (typing . ./.bashrc) but it is not working.
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May 13, 2010
I need to set some custom environment variables.
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Jul 19, 2010
When I execute something with sudo, the environment that it executes in doesn't have all the environment variables from /etc/profile{,.d/} defined. I googled around and found that there is a way to get the environment variables from the calling environment to be carried over to sudo's own environment, but that's not exactly what I want. I just want sudo to read the /etc/profile and /etc/profile.d/ before executing commands.
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May 9, 2011
Does anyone know what file I have to modify to set the environment variables for FSCK? I can't run FSCK on my file system because it runs out of memory after about 10 minutes. This variable sounds like it will solve all of my problems but I can't find the file to modify to set the variable or what parameters it takes (number? yes/no?, etc).I'm trying to recover has a lot of information on it that I would really like to get back.
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Jul 4, 2011
I always have to google about setting environment path variables when I install new software. My basic problem is that I dont know whether these variables need to be set globally or not. I have read a number of mails/tutorials which say that Environment variables should be set by simply doing an export ..eg EDITOR=nano export EDITOR
additionally I have read that it should be written into /etc/bash.bashrc
But are these really global variables or local? I want the variables to be set
even after I have logged out.
so I could also write the variable here...
/etc/environment
or here
/etc/profile
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Aug 23, 2015
I'm trying to compile Ardour on jessie amd64 using the Debian source code (there's already an ardour package but I want to use different compile options). I've applied the Debian patches and have all the required dependencies installed.
Scons quits with a KeyError message from python2.7 saying that os.environ['DEB_HOST_ARCH_OS'] is not defined.
Checking with 'dpkg-archtecture -l' shows that DEB_HOST_ARCH_OS=linux, but 'print os.environ["DEB_HOST_ARCH_OS"]' in python says that name 'os' is not defined. The scons script has 'import os' at the top so it should be seeing it.
How do I make this visible to python (I'm assuming this problem is specific to the jessie python2.7 installation and not python in general)?
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Oct 11, 2009
How do I edit my .bash_profile so recursive directories are on my path without manually typing all the directories? For example, I want to have /home/woodenbox/SU, /home/woodenbox/SU/bin, /home/woodenbox/SU/bin/src, etc on my path without actually having to write the paths for all the subdirectories
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May 3, 2011
How to set JAVA_HOME environment variables permanently such that it will not have to be set each time it has to be used.
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Apr 27, 2011
I have installed jdk in my pc, and i've set up the environment variable on the .bashrc file in my home directory although i can use java's compiler and interpreter in terminal (xfce) if i try to use these commands in konsole (kde) for some reason they don't work. do i need to edit other file?
Nevermind, i found out that konsole was being executed with -e $SHELL -l parameters, once i took them out, and just ran konsole everything worked.
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Jun 12, 2011
I've added an export command to /etc/profile, but the environment variables don't show up when not using a terminal.
For example: when I add:
Code:
To my /etc/profile (then open a new terminal so it registers) and run a graphical program from that terminal, the graphical program can see see the environment variable A.
However if I add the export command to my /etc/profile, then reboot so everything registers, then run that same graphical program from a menu (such as Applications->Accessories->Myprogram), it can't see the environment variable.
What I'm trying to say is basically, my environment variables only show up if I run a program in a shell. Is there a way to set environment variables that will show even without a shell?
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Jun 19, 2010
Trying to mounts three cifs shares at boot up. I want to mount the shares under three different sub directories in the user's home directory:
share 1 mounted to /home/(insert username here)/movies
share 2 mounted to /home/(insert username here)/music
share 3 mounted to home/(insert username here)/software
I would like to use the environment variable HOME to dynamically build the mount point parameter. I've tried:
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