A set of dynamic variables that can affect the running processes.

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3
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1answer
40 views

How to quickly check the value of bash variables, aliases and history commands from terminal?

How do you expand in place: bash aliases environment variables history commands to edit them and check they are correct? For example, I have some aliases I use for flashing different devices and ...
0
votes
2answers
4k views

Updating http_proxy environment variable

I recently changed my password corresponding to my username for my proxy. Hence I updated the apt.conf and /etc/environment files with my new password. However when I type echo $http_proxy or ...
0
votes
1answer
30 views

When I open a terminal and type set I get a strange output

I opened a terminal on the desktop in Xubuntu and typed set and then a new line. I aws expecting to see a display of my environmental variables, but all I got was a display of a lot of code. What on ...
0
votes
1answer
183 views

How to configure path or set environment variables for installation?

I'm aiming to install APE in Ubuntu 14.04 LTS, a simple code for pseudopotential generation. I'm having this error message while running ./configure: checking for gsl-config... no checking for GSL - ...
0
votes
2answers
3k views

Adding custom path by updating ~/.profile with not working

I have altered my ~/.profile file by adding the following: PATH="/user/share/android-sdk-linux/tools:$PATH" I then log off and log in again, but the path is not added to the $PATH environment ...
31
votes
5answers
37k views

How to list all variables names and their current values?

Including not only $HOME, $PWD etc but any other you have defined.
6
votes
3answers
8k views

What is $DISPLAY environment variable

I am new to shell script NOT able to understand what is $DISPLAY environment variable. I am running Ubuntu 13.10 and using /bin/bash shell. I have connected two monitors. Questions: echo $DISPLAY ...
1
vote
1answer
5k views

Setting global environment variable for everyone

If I set a variable in /etc/environment, it only seems to apply to administrators while in sudo su. How can I get the variables to apply to everyone? Especially when they are in terminal? Do the ...
0
votes
1answer
23 views

Environment Variable or saving dev_key file

I am slightly new to ubuntu, I have a NASA-ADS dev_key to access some data on there system but am unable to: save it as an environment variable named ADS_DEV_KEY or save it to a file called ...
1
vote
1answer
102 views

JDK 8 Installation for Ubuntu 14.04 (Android Studio & NetBeans)

I downloaded jdk-8u11-nb-8-linux-i586.sh and installed it in my home folder. Then I install NetBeans, it is successful I think because I can compile my java code using netbeans. Now when I install ...
1
vote
2answers
61 views

Changing environment variables

I just changed my /etc/environment file to: M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1 M2=$M2_HOME/bin ...
0
votes
1answer
35 views

Why won't Vim source my .vimrc at startup?

I have modified my ~/.vimrc significantly (although some of my initial modifications I made in the system-wide /etc/vim/vimrc). It probably doesn't matter either way since I am really the only user ...
2
votes
2answers
29 views

What exactly should I set as JAVA_HOME?

I am trying to make Tomcat 7 working with Eclipse, and I am not sure if my JAVA_HOME is correct. ~$ echo $JAVA_HOME /usr/lib/jvm/default-java And there is no such catalog! I only have: ~$ ls ...
18
votes
3answers
298 views

What is the $BASH_COMMAND variable good for?

According to the Bash manual, the environment variable BASH_COMMAND contains The command currently being executed or about to be executed, unless the shell is executing a command as the result of ...
9
votes
5answers
881 views

How can I make it so I can run a specific program, just by typing its name in the console?

I have just recently installed Light Table downloading it from the git repository, and followed the instructions on this website to create a desktop launcher. Now I want to run the program by ...
2
votes
0answers
31 views

Echo difference between Ubuntu and Red Hat [migrated]

I have mostly been experimenting with Ubuntu but recently was using a Red Hat Enterprise system and was surprised at a difference I found setting and displaying env variables. In Ubuntu I might have ...
0
votes
0answers
28 views

How to set environment variable in Eric Python IDE

I have no problem running a Python script from the terminal, but in Eric Python IDE, I am getting this error: ImportError libcudart.so.6.0: cannot open shared object file: No such file or directory ...
1
vote
1answer
34 views

`TERM` environment variable not exported from `.profile`?

I have this in my .profile (I'm running Ubuntu 12.04): export TERM="xterm-256color" The variable seems not exported or be invariably later overwritten as TERM="xterm". A test with Gnome Terminal: ...
0
votes
2answers
38 views

How do I set environment variables through a keyboard shortcut?

I have a script that increments an environment variable, but it only works if I run it by perpending it with "source" or with a ".". Unfortunately, this means that if I attempt to bind it to a key, I ...
2
votes
0answers
119 views

How to start/configure pulseaudio remotely with ssh?

I have a remote machine to which I can ssh. On the remote machine there is a program that uses pulse audio to get input from a USB microphone attached to the remote machine. This setup works fine when ...
2
votes
2answers
9k views

Error: JAVA_HOME is not defined correctly - after maven installation

I installed Java JDK on Ubuntu 12.04 and added Java home to my path at ~/.bashrc: export PATH=/opt/jdk1.7.0_40/jdk1.7.0_40/bin:$PATH This looks a little bit strange but it's really my path. After ...
0
votes
1answer
25 views

variable.sh is not exporting the variable using terminal

I want to export many paths using a .sh script. after running it nothing is exported I don't know why. so if anyone can advise. This is the script used: #!/bin/bash txtrst=$(tput sgr0) # Text reset ...
0
votes
2answers
22 views

why everything is reverted back in PATH env variable after reopening shell?

As far as I know PATH is not a temporary variable. And when you reopen your terminal it should work as before. In my case it's not. What I do is to add another path to $PATH: export ...
3
votes
2answers
241 views

Why I obtain this error when I try to perform this simple bash script?

I am following this tutorial to correctly execute Aptana Studio on my Ubuntu 14.04: Command menu in aptana studio 3 is not working in ubuntu 14.04 So I have installed the Oracle JRE and finnally I ...
22
votes
3answers
38k views

BASH script to set environment variables not working

I've written the following script to set some environment variables when needed. #!/bin/sh export BASE=/home/develop/trees echo $BASE export PATH=$PATH:$BASE echo $PATH Below the command and the ...
0
votes
2answers
34 views

How to bring “.bashrc” in effect without logging out or Restarting the current session?

I am basically using .bashrc for adding environment variables. Each time I add a new Environment variable, I have to log out the current session and log in again to bring the changes in effect. Is ...
0
votes
1answer
24 views

What is the default values of KMP_AFFINITY variable?

I was playing with the KMP_AFFINITY variable in my program and forgot to back-up the previous value. Now the performance of my C++ program has fallen to 50%. Can anybody tell me what is the default ...
2
votes
1answer
367 views

Why can't a process see environment variables set in /etc/environment?

I defined several environment variables in /etc/environment, but a process (build started by TeamCity) cannot see their values. I don't know what I'm doing wrong here.. this is the content of my ...
0
votes
1answer
91 views

Permanent PATH variable

How will I make this /media/De Soft/mongodb/bin PATH variable permanent? Everyone is saying export PATH=$PATH:media/De\ Soft/mongodb/bin to your ~/.profile, or .bashrc, or .zshenv depending on your ...
7
votes
3answers
9k views

Add bash script folder to path?

I have some bash scripts in an application folder that I'd like to use as if they were on my path. If they were straight-up applications, I'd just add the directory to ~/.bashrc, but these are ...
0
votes
1answer
26 views

problem to update bash profile

Each time i work with a tool named criu, i set the path variable: PATH=$PATH:/home/th/criu-1.3-rc2; export PATH to be able to run criu dump but when I close the terminal and open it, it does ...
0
votes
0answers
14 views

Environment Variable - how does properly set them (bashrc or profile) [duplicate]

I am very new in Ubuntu and I am lost about Environment Variable. I have read some Forums but I didn't understand yet. If I type java -version I got the java confirmation but if I type echo ...
4
votes
1answer
8k views

libxml2.so.2 No version information available

I repeatedly get the following error when using GRASS GIS and I think a few other programs: /usr/local/lib/libxml2.so.2: no version information available ... As far as I can tell I have libxml2 ...
1
vote
2answers
36 views

Can the PATH variable be corrupted?

I installed rbenv, a ruby version management program. I looked in the .bashrc file and noticed that the path variable was changed as below: export PATH="$HOME/.rbenv/bin:$PATH" I think the ":$PATH" ...
1
vote
1answer
64 views

Difference between $LOGNAME and logname

when echo $LOGNAME or logname commands run normally get same result like following: pandya@pandya-desktop:~$ echo $LOGNAME pandya pandya@pandya-desktop:~$ logname pandya But I found their ...
3
votes
2answers
356 views

Why isn't ubuntu checking the correct directory in the $PATH variable?

I'm trying to run a program redis-cli $ ls -lh /usr/local/bin/ | grep redis -rwxr-xr-x 1 root root 4.2M Mar 24 19:49 redis-cli -rwxr-xr-x 1 root root 5.6M Mar 24 19:49 redis-server $ echo $PATH ...
1
vote
2answers
38 views

Echos, variables, and help with this question

The book Learning The Bash Shell says- "Notice that we used double quotes around variables (and strings containing them) in these echo examples. In Chapter 1, we said that some special characters ...
1
vote
2answers
3k views

HOME/bin not a valid identifier

I am a grad student who has fallen into maintaining a server on a linux-Ubuntu machine - we work in Ontopia and Wandora, two programs that like to mess with Java environments. I am learning as I go ...
0
votes
0answers
23 views

$DISPLAY environment variable changes upon (almost) every reboot

I am facing a very strange problem. I have a one display connected to my PC. However the $DISPLAY variable changes almost every time I reboot. For now it is :0.0, but before reboot it was :1.0. There ...
0
votes
0answers
47 views

How to set environmental variables for LuaSocket in Ubuntu?

I have installed the LuaSocket(luasocket-2.0.2.tar.gz) using this manual. But while performing the commands to require function to gain access to whatever module you need as below: socket = ...
1
vote
2answers
227 views

How to include environment Variable in launcher for icon

This is an extension to the question how to include an environment variable in the launcher? . This question explains how to use the environment variable for the Exec part of the .desktop file but not ...
1
vote
2answers
640 views

When I use ZSH, how do I set PATH in /etc/profile.d?

I'm using zsh as my shell, and I'm trying to configure my environment. I usually define my $JAVA_HOME variable by creating a file: /etc/profile.d/java.sh with the following content export ...
21
votes
3answers
3k views

Why does “A=10 echo $A” not print 10?

This command: A=10 echo $A prints an empty line. Why not 10? Why doesn't the in-place temporary environment setting work? I want to know the reason and explanation rather than solution. I used ...
0
votes
0answers
40 views

How can I see environment variables defined in .profile after lauching sudo codeblocks?

I am developing code with C++ in code::blocks. Because my code needs to access mice devices I launch code::blocks with sudo as superuser in an xterm I opened first. In the code I would like to read ...
0
votes
1answer
35 views

Why do I not have the $MAIL environment variable?

I read that the $MAIL shell environment variable is one of the most common ones, and stores the location of my mailbox file, where my emails are stored. I looked into the /var/spool/mail and ...
4
votes
2answers
3k views

Is there a GUI to edit the PATH variable?

There's a GUI in Windows to edit the path variable. I was wondering if there's something equivalent in Ubuntu to do the same.
3
votes
3answers
296 views

Can't get $(date +%F) set as environment variable

I would like to create an evironment variable that will output the current date. I have added the following to ~/.pam_environment: TODAY=$(date +%F) Apparently you have to log out after changing ...
1
vote
2answers
79 views

What are the standard Environment variables ($) in Ubuntu?

I know some useful environment-variables like $HOME, $UID, $BASH, $LOGNAME etc. which is useful to get information in terminal/command-line with using echo(ex: echo $LOGNAME) I want to know what are ...
0
votes
1answer
95 views

Bash script not adding variables to session [duplicate]

I have a bash script that I have added as a startup application. It does a bunch of exports and alias assignment. #! /bin/bash alias devhm='cd ${DEV_HOME}; ll'; alias wlhm='cd ${WL_HOME}; ll'; alias ...
4
votes
3answers
1k views

Tomcat does not recognize JAVA_HOME

I've installed Ubuntu 14.04 Server, extracted JDK1.8u5 and Tomcat7, and added the following to .profile (I also tried adding it to .bashrc with similar [non-] results): export ...