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

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7
votes
2answers
3k views

rkhunter warns me about root.rules

I run : :~$ sudo rkhunter --checkall --report-warnings-only One of the warnings I've got : Warning: Suspicious file types found in /dev: /dev/.udev/rules.d/root.rules: ASCII text and ...
0
votes
1answer
150 views

How to undo DISPLAY export in linux?

I have exported my X display to another computer using this command: export DISPLAY=xxx.xxx.xxx.xxx:0.0 How can I undo it?
2
votes
4answers
231 views

How do I run a program in a fresh shell?

I have a program that does a LOT of env manipulation. It sets PYTHONPATH and LD_LIBRARY_PATH and stuff like that. This program needs to run ANOTHER program, but in a fresh env, without all of the ...
0
votes
1answer
35 views

How do I display contents of a file where PATH environment changes are made?

Say I change the $PATH environment variable. If I'm asked to display the contents of the file where this change happened, how would I do this?
0
votes
4answers
125 views

Unset http_proxy enviroment variable

Updated 11/03: After doing some test with your suggestions, I only can be sure about one thing: there is something related to the graphical environment, because if I login through ssh or using ...
3
votes
3answers
682 views

Adding prefixes/suffixes to file names without typing it all over again?

I would like to do something like the following $ tmp=name* $ mv $tmp new_$tmp $ ls new_* $ new_name-with-stuff-i-dont-want-to-type name-with-stuff-i-dont-want-to-type Setting the environment ...
2
votes
1answer
375 views

Restrictions of /etc/profile in Gnome

I have an issue which bugs me for a long time. I'm using the Intel C++ compiler which includes shell scripts to set up environment variables for library paths, include paths and more. Sourcing these ...
5
votes
1answer
841 views

Escape hash mark (#) in /etc/environment

I am adding an env variable to /etc/environment but because the variable value contains # sign, string is striped. MYSQL_PWD="something#no" Now if I do env above code yields MYSQL_PWD=something. ...
3
votes
3answers
897 views

Setting hostname variable right after SSH login

I have set of some (third-party) shell scripts, which are supposed to connect to remote host and start some daemons (hadoop, if that matters). These scripts rely heavily on hostname in order to ...
0
votes
0answers
1k views

Removing path in env variable PATH permanently [duplicate]

I have recently installed Code Sourcery's ARM EABI Tool Chain. All the executable binaries were installed in a separate folder. I thought that the bin path will be added to env variable $PATH. ...
2
votes
1answer
50 views

Checking the order of items in a shell environment variable

I am wanting to check that a certain directories always appear after other directories in an environment variable. List items are separated by a colon, as with the PATH variable. This is not simply ...
3
votes
1answer
117 views

Appending values to environment variables from within Emacs

I am new to Elisp. I would like to do the following in my init file: ; Retrieve the value of LD_LIBRARY_PATH ; Append '/path/to/some/lib/:'to it ; Save the new value of LD_LIBRARY_PATH So far I ...
1
vote
1answer
45 views

Launching an application with an user environment

If I launch eclipse from the command line, the application is aware of the environment variables of the user (e.g. PYTHONPATH) and sets up the interpreter accordingly with Auto Config. This is not the ...
2
votes
1answer
3k views

How to assign result of sed to variable

Below is a complete copy of a demo I'm using to to figure out to get the sed command to get rid of the spaces in a persons name, and compress it down to not have spaces. Once this is done, I want to ...
2
votes
2answers
3k views

Exporting a variable with dot (.) in it

How to export a variable which has dot in it. I get 'invalid variable name' when I tried : export my.home=/tmp/someDir -ksh: my.home=/tmp/someDir: invalid variable name Even escaping metacharacter ...
2
votes
3answers
76 views

Is it a good idea to put environment variables to /usr/local/bin

I'm using aws cfn to start ubuntu instances, and I need to pass variables provided in cfn launch script to the scripts on the instance. For example, I may pass "db-server=db-2.domain.com" and there is ...
4
votes
2answers
149 views

how to prevent exported environment variables to be recognized/accessible by a child shell (bash)?

So, I need to prevent loads of exported variables to be recognized by a child shell. The problem is an application (Wine+UDK) wont build projects with too many (>65535) bytes on the environment, ...
2
votes
3answers
3k views

How can I keep *all* environment vars for a specific command in sudo?

I have a script that sets several environment variables and then finally calls another script using sudo. The script run with sudo must be able to pick up those variables, and I'm not always going to ...
4
votes
1answer
284 views

Setting user environment variable permanently, outside shell?

Is it possible to set up an envinronment variable that can be accessible from any shell, not an specific one, and that doesn't decay as soon as your session ends? I'd like to set up a NODE_ENV ...
8
votes
5answers
3k views

How is sudo set to not change $HOME in Ubuntu and how to disable this behavior?

On Ubuntu 12.04, when I sudo -s the $HOME variable is not changed, so if my regular user is regularuser, the situation goes like this: $ cd $ pwd /home/regularuser $ sudo -s # cd # pwd ...
36
votes
4answers
1k views

What exactly is an environment variable?

I know that VARIABLE=value creates an environment variable, and export VARIABLE=value makes it available to processes created by the current shell. env shows the current environment variables, but ...
2
votes
1answer
2k views

bash: export: `--wait': not a valid identifier

When I run git-sh from my terminal it works fine. But I get the following warning. bash: export: `--wait': not a valid identifier What is this and how do I get rid of it?
2
votes
1answer
4k views

How to set Oracle Java's JAVA_HOME in Fedora 19

I just installed Fedora 19 and managed to get FedoraUtils installed. So I chose java oracle. after installation I could see in the FedoraUtils list that oracle java (installed) but I can't see the ...
2
votes
1answer
273 views

Screen - inherit current window's environment

In GNU Screen, how can I create a new window whose shell inherits the environment of the shell in the current window? The usual Ctrl+A C doesn't seem to do this.
3
votes
1answer
544 views

How to set the path OSX applications use

I'm running Mountain Lion 10.8.4, and have my environment all customized through ~/.profile so that when I run GUI apps like Sublime Text or Eclipse from the command line open /Applications/Sublime\ ...
12
votes
2answers
974 views

What's the best distro/shell-agnostic way to set environment variables?

The question says it all. I currently use Arch Linux and the zsh, but I'd like a solution that (at minimum) works both on VTs and in xterms and also (hopefully, preferably) will continue to work if I ...
51
votes
3answers
27k views

What does “LC_ALL=C” do?

What does the C value for LC_ALL do in Unix-like systems? I know that it forces the same locale for all aspects but what does C do?
4
votes
7answers
2k views

how to share environment variables between shells like globals related to a master pid?

So, I need to share environment variables between shells, and that the changes on the variables be promptly recognized by all shells, like global variables. But they must be related to a master pid, ...
1
vote
1answer
183 views

Why does export not seems to affect child shells?

if I have $ x='This is a String' $ export x $ xterm & [3] 14089 The child process doesn't seem to respond to $echo $x $ Update: The FIRST time I export the variable it seems to span a ...
3
votes
2answers
277 views

Which Debian package does /etc/environment come from?

I know that /etc/profile is installed by base-files, but it doesn't look like this package installs /etc/environment: $ dpkg -S /etc/environment dpkg-query: no path found matching pattern ...
4
votes
1answer
15k views

bash setenv command is not found

every body I am new in centos server I am getting a error while using following command setenv CLASSPATH /path/mysql-connector-java-ver-bin.jar:$CLASSPATH error is bash setenv ...
0
votes
2answers
272 views

gmrun stopped searching user added path

gmrun started ignoring the PATH variable I defined in ~/.bashrc for no obvious reason. Anyone has any idea how I can find out a way to solve this annoying problem? EDIT I have not found the ...
2
votes
2answers
378 views

How to source correct startup scripts on interactive, non-login shell

I'm trying to set up a sane/usable environment in a barebones OpenSolaris-derivative (OmniOS, a distribution of Illumos/OpenIndiana). I have all the plumbing code I need in .profile, .inputrc, and ...
0
votes
3answers
724 views

TERM variable in chroot

I've created a chroot with the help of jailkit and now I'm trying to install some other libraries and tools. First I tried to install clear library. I've copied the file from the /bin folder and ...
4
votes
2answers
477 views

Setting environment variables for system users

I have a couple of system users that have no password set, login disabled and no home directories. They are used solely to run FastCGI processes for a couple of websites. I want to avoid hard coding ...
3
votes
2answers
273 views

Current environmental variables of a process

This question relates to this answer. Is it possible to get the current (not initial) environmental variables of a process by making a child process and checking its initial environmental variables? ...
2
votes
2answers
176 views

How to get environmental variables of a very short process?

I have a very short process for which i want to check the environmental variables for debugging purposes. The process is instant from a human perspective. The example illustrates it better. Example ...
6
votes
3answers
3k views

How do I set the PATH or other environment variables so that X apps can access it?

How can I set env variables so that KDE recognizes them? How do you set the path in a non-shell environment (KDE)? Unlike the above two questions, I want to know how to do this for GNOME. Or better ...
19
votes
3answers
940 views

Show PATH in a human-readable way

I want to show my PATH environment variable in a more human-readable way. $ echo $PATH ...
3
votes
3answers
2k views

Why do 'ssh host echo $PATH' and printing the $PATH after ssh'ing into the machine give different results?

On a particular host, when I ssh into the machine and enter echo $PATH I get /home/wxy/bin64:/home/wxy/bin:/usr/kerberos/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/bin:/usr/bin and if I ...
-3
votes
1answer
11k views

“not a valid identifier” when I do “export $PATH”

When I run export $PATH in bash, I get the error not a valid identifier. Why? Here's my ~/.bashrc file # ~/.bashrc: executed by bash(1) for non-login shells. # see ...
3
votes
4answers
124 views

$PATH duplication issues

If I do echo $PATH I get the following: ...
1
vote
3answers
4k views

Get environment variable of other user [closed]

Is there a way I can see the environment variable of an other user? I want to do that as root, so permissions won't be a problem I guess. For the user himself, I use echo $PATH or set | grep PATH ...
3
votes
2answers
4k views

How does the path enviroment variable work in linux?

I'm confused how does the enviroment path work under linux, I'm a Linux Mint 15 user. First, I read about editing the /home/.bashrc file and doing a PATH=$PATH:/directory, but I also knew about ...
0
votes
0answers
31 views

Spurious “command not found” [duplicate]

I am in the process of trying to build and install pjsua on my embedded board running linux with a kernel which is a variant of 2.6.18.. The board is booted via nfs from my filesystem. I have built ...
1
vote
3answers
437 views

SUDO: Username condition in sudoers file

I'm trying to allow my user (via sudo, launched in a script) to copy a file from their home to a web directory. Command would be: sudo cp /home/$LOGNAME/file_source /var/www/$LOGNAME_file_dest So ...
4
votes
4answers
4k views

What is the `editor` command in bash?

I was looking for a command that would hopefully open the current user's favourite text editor, because I am writing out some instructions with commands in a blog. I was expecting a command like edit, ...
8
votes
2answers
5k views

Who sets $USER and $USERNAME environment variables?

Also, will these variables always match currently logged-in username (they do on my Debian system)? Can I assume their availability in other Unix(-like) systems? I'm also curious why one would use ...
2
votes
1answer
184 views

Any other way to define an environment variable?

I'm quite new to Linux. Debian Wheezy is now running on my Laptop (64 bits). I recently installed Oracle 11g R2 database for evaluation purpose, and defined environment variables (such as ORACLE_SID) ...
1
vote
1answer
292 views

Executing commands with PHP: using normal user, but its home directory is /root

I'm using a custom compiled installation of Apache + PHP, listening on port 80. Apache is configured to run as a normal user, with the proper settings User and Group of the httpd.conf file. After ...