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

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2answers
41 views

etc/environment == $PATH?

I try to fix a problem with my Android Studio Installation and for that I want to edit the $PATH variable and the $JAVA_HOME variable global and not only for one session. As I described here (Oracle ...
0
votes
0answers
24 views

“Please ensure JAVA_HOME points to JDK rather than JRE” with Android Studio

I'm trying to install Android Studio but haven't been able to solve this problem yet. What I get when I try to run ./studio.sh is: OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=350m; ...
4
votes
2answers
784 views

I permanently changed my PATH variable by mistake, and I am unable to login now. How to change my PATH variable to default?

I used sudo -H gedit /etc/environment command on terminal to permanently change my PATH variable. To correct it, I pressed Ctrl+Alt+F1, and used export PATH command but the access was denied. Many of ...
11
votes
1answer
370 views

What does C in LC_ALL=C mean?

I know very well that to override locale settings we can use LC_ALL prepended to the command one wants to run. I also know C uses default locale of a system. But what does C stand for ?
7
votes
1answer
748 views

Is “LD_LIBRARY_PATH” a security risk?

We know ld.so searches for libraries in directories specified by the environment variable $LD_LIBRARY_PATH, but regular users could run: export LD_LIBRARY_PATH=dir1:dir2... They can save infected ...
1
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0answers
26 views

not getting the value of http_proxy using python

I have checked that there have an environmental variable by using this command : printenv | grep http_proxy and when i am trying to get this value by using python script it is returning None.here ...
0
votes
0answers
28 views

Change qmake address ubuntu 14.04

I had installed the 32bit version of Qt but because it didn't work well (my system is 64bit), I uninstalled it using MaintenanceTool and installed the 64bit version. But now, when I run which qmake ...
0
votes
1answer
32 views

Blank desktop on Lubuntu 14.04

I get a blank desktop after logging in on Lubuntu 14.04. Have tried following this wonderful guide (among others), but it doesn't work for me. I have installed Unity and enabled it, but maybe this ...
3
votes
2answers
123 views

Getting environment variables

The env command does not give all the environment variables on Ubuntu 12.04, like those used by individual applications. How could I get all environment variables?
2
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1answer
67 views

Setting an environment variable in /etc/environment doesn't work but export does?

So I'm trying to set an environment variable called "NODE_PATH", It works by using: export NODE_PATH=/home/myname/node So I thought I'd set it up permanently and found that it needs to be done in ...
9
votes
2answers
525 views

bash -c “v=value; echo $v” displays nothing

Executing the following from a comand line screen: bash -c "v=value; echo $v" displays nothing. It's ok? How can I assign a value to a variable inside this kind of execution?
0
votes
1answer
152 views

-bash: export: not a valid identifier

Whenever opening the terminal, I always end up with this same error. -bash: export: `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin:/usr/...
1
vote
1answer
65 views

Can a script modify an environment variable of its calling shell? [duplicate]

I am setting my JAVA_HOME in my ~/.bashrc file. Now, I need to create a script that will change the JAVA_HOME just for the current terminal, so that I can start an app that needs java 5. I have ...
1
vote
1answer
123 views

sudo ionic run android not working

I am trying to run a hybrid app on my android phone using ionic using the following command: sudo ionic run android However I keep receiving this error : Error: Failed to find 'ANDROID_HOME' ...
2
votes
1answer
69 views

SSH executes the command differently

After several experiments I got to a surprising behavior by SSH. I usually access to a specific application through an SSH connection. In fact, that app is on a virtual-box on a workstation in a LAB. ...
3
votes
1answer
57 views

“sudo pip” differs from normal “pip”

When I execute which pip3 it points to /usr/.../anaconda3/bin/pip3 However, when I run sudo which pip3 the result is /usr/bin/pip3 Where does this problem comes from and how do I ...
0
votes
1answer
27 views

Why can't my user see environment variable?

I have a .sh file with some environment variables under /etc/profile.d/vars.sh. Its content looks like this: export PORT=8080 This is an Ubuntu 14.04 running on AWS EC2. When I log in via SSH with ...
0
votes
1answer
21 views

After “source .profile” the variable in a new terminal is still empty

One of the applications requires JAVA_HOME variable. Java is installed. In ~/.profile I have this: PATH="/usr/local/heroku/bin:/usr/share/perl6/vendor/bin:/home/arch/.local/bin:$PATH" JAVA_HOME="/...
0
votes
0answers
33 views

Disabling proxy problem

I've tried disabling the proxy using various command lines, it worked until I tried Maven clean install. Here's what is happening, $ mvn clean install[INFO] Scanning for projects... [INFO] ...
-1
votes
1answer
22 views

Survival of manually edited variables

I have some environmental variables set in my .profile, and thus the variables can be set automatically when I log in. In some special cases, I also need to change some settings using the command "...
0
votes
0answers
15 views

Environment var for multiple (silmutanious) sessions

How can I set an environment variable that is shared for the same user on different login sessions? E.g. I login on a server with the same user but multiple SSH sessions. The var should be resettet on ...
1
vote
2answers
17 views

How should I set enviroment variables at GNOME login - not shell?

Ubuntu 12.04, GNOME Classic I have a script that I execute from /etc/bash.bashrc. Whenever I open a terminal, it sets some environment variables needed for my applications to run. I execute them from ...
-1
votes
1answer
19 views

How to set varible envirement in global level(for entire envirement)?

i need to set this line export STUDIO_JDK=/usr/lib/jvm/java-8-openjdk-amd64 according the documentation to setting file... i have try this command to open system file /etc/environment but get ...
0
votes
0answers
26 views

Edit /etc/environment via Command Line [duplicate]

I am using Ubuntu Server 14.04 and I would like to be able to edit the /etc/environment file via the command line to append the file with environment variables. This append operation is going inside ...
0
votes
0answers
70 views

When setting an environment variable that is a directory path, what is the “root” from which I am setting the path?

I'm making a node.js app that uses gcloud's prediction API, which has as an authentication option setting a "GOOGLE_APPLICATION_CREDENTIALS" environment variable with a full path to my key file. I've ...
0
votes
0answers
15 views

Unable to clear http_proxy ubuntu 14.04

Currently my chromium proxy recieves a 'Burp Suite Professional' error on almost any page access, same with my steam client. I believe the culprit is coming down to a proxy variable I have accidently ...
2
votes
1answer
72 views

How to use sed with file path variables AND regex callbacks AND arithmetic expressions

I'm having a hell of a time getting the proper syntax using sed with variables containing a file path, a regex callback and an arithmatic expression. I don't know how to properly escape things. I ...
0
votes
1answer
54 views

Why is there no /etc/zsh.d/ in ubuntu, and where should I add system-wide options?

I am trying to write an ansible role that needs to add to the PATH. For bash, I can easily add a file in /etc/profile.d. But zsh apparently doesn't come with an /etc/zsh.d. Is there another ...
0
votes
1answer
22 views

PATH variable in different terminal windows

I note that if I have several terminal windows opened and in one of them I set path variable through bashrc: export APP_PATH="path_to_app" export PATH="$APP_PATH:$PATH" Then call: source ~/....
0
votes
2answers
53 views

exporting an environment variable from a bash script to a tcsh shell

I run bash scripts from tcsh shells. I want to set an environment variable in the tcsh shell from a bash script. The method of doing this, if your parent shell is bash is to source a file, i.e., ...
2
votes
1answer
54 views

How do I use variables and non-variables in a single sed command?

I'm trying to use sed to replace some PHP lines. My problem is I want to replace a line with PHP variables with a string including a Bash variable. Here is an example: sudo sed -i 's/$sUrl . $...
0
votes
1answer
50 views

How to set path for the Tomcat7 user

I'm trying to install an extension for GeoServer. The instructions say: Create a GDAL_DATA environment variable to the folder where you have extracted this file. Make also sure that this directory ...
1
vote
4answers
821 views

Dollar sign in environment variable's value

Is it a bad practice to have a dollar sign in an environment variable's value? ex: MY_VAR="$toto" To be more precise, I would like to set it in the /etc/environment file to be accessible by a java ...
0
votes
0answers
24 views

Export path with spaces to ~/.profile [duplicate]

So this is very, very weird. Hoping for some help. This is the path I'm trying to export in my ~/.profile: /var/lib/plexmediaserver/Library/Application Support/Plex Media Server Here is what I ...
4
votes
1answer
28 views

Why must there be a technical separation of shells into login and non-login kinds?

Shells can be login as those run by the text console and non-login as those run by Gnome Terminal. Why is this complexity needed? Why can't a login shell follow the same rules as the non-login?
0
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0answers
34 views

How to set environment variables with a dot(.) in ubuntu

I want to set an environment variable in bash called cloudsql.url with a value http://localhost:3306/xyz?user=username&password=password I tried with export cloudsql.url=http://localhost:3306/...
0
votes
1answer
99 views

assign cuda to a specific gpu

Two NVIDIA 780Ti cards installed. Using cuda 7.5 on Ubuntu 14.04. Postinstallation checklist shows cuda installed properly and functions properly. My monitors are attached to device 0. I compiled the ...
0
votes
1answer
29 views

Define a variable inside a function [closed]

I am wondering if it is possible to do like JavaScript, calling a variable from a function, something like: function myFunction(variable){ // do some stuff here } Then we call it like: myFunction(...
1
vote
1answer
240 views

'echo $SHELL' returns 'fish' when I'm using 'zsh' [duplicate]

First I installed fish and then I wanted to test zsh so I installed it. Actually I'm using zsh and it works perfect (at the moment): I can switch themes, enable plugins, etc... But when I do: echo $...
0
votes
0answers
19 views

Unable to create a file in /etc/profile.d/ : Ubuntu 14.04 [duplicate]

I wanted to create a file oraclejdk8.sh in the folder /etc/profile.d/ according to the accepted answer given here. But in the process I am getting an error like this: ankur@ankur-Lenovo-G580:/etc/...
0
votes
1answer
62 views

In which system file does 'export' command make changes?

I installed java-8 using a PPA. After that I gave a command: export JAVA_HOME=/usr/lib/jvm/java-8-oracle I had heard somewhere that this command does temporary changes. But after many logouts and ...
1
vote
1answer
281 views

Maven environment variable not working on other terminal

When I run echo $PATH and echo $JAVA_HOME command as a normal user, I get jdk path variables set. But when I run as a root user, the variables are not set there. I copied maven binary folder to /opt ...
3
votes
1answer
80 views

Definitive and immediate way to export a path

Assume I want to export a path, let's say FOOBAR and make the changes not only effective immediately and everywhere but also permanent. My goal is to have a list of commands that can be entered ...
1
vote
1answer
43 views

how to revert changes on /etc/environment, which prevent a login

I have just added this line "export PATH=/opt/apache-maven-3.3.9/bin:$PATH" to my /etc/environment file. I tried to restart Ubuntu 14.04 and now I cannot log in with my user/pw in the OS. could ...
0
votes
0answers
1k views

What is Environment variable and how should I set it for ionic?

I am new to Ubuntu and trying to create an ionic project. When I try to build my project with: ionic build android It says Error: Failed to find 'ANDROID_HOME' environment variable. Try setting ...
0
votes
0answers
36 views

add executable to path not working

I am aware that: 1- defining an executable to PATH is done in .bashrc file or .profile or in etc/profile or etc/environment. 2- to get effect, I have to source the file (source ) or restart the ...
3
votes
1answer
167 views

Background not changing using gsettings from cron

I'm trying to change my wallpaper to a random image using Indrajith Indraprastham's suggested script here: How to change desktop background from command line in Unity? When I run the script from a ...
1
vote
1answer
276 views

Environmental variables for anaconda

I'm new to UNIX. On my windows work computer I have anaconda and do a lot of Python work. I installed anaconda on Ubuntu 14. I would like to type conda or activate in a terminal and have those work....
-1
votes
1answer
78 views

Installing Android Studio Application [duplicate]

how to add android-studio/bin/ to my PATH environmental variable?
1
vote
2answers
588 views

14.04 inside docker “TERM environment variable not set”

I am running an ubuntu 14.04 inside a docker container. My image is build from the official ubuntu:14.04 image) The Docker file is almost identical with this https://github.com/pfy/erpnext/blob/master/...