Environment variables are system-wide variables which share the same value. These variables are often parsed by the shell when executing commands, and are expanded into their appropriate variable. For example, this allows users to move file locations without needing to update hard-coded paths in ...

learn more… | top users | synonyms

0
votes
0answers
3 views

Phusion Passenger Showing Environment Variables

I'm getting some Phusion Passenger errors with Ruby On Rails Problem is it's showing my environment variables in the error report. This is great in development, but what happens if my server faulters ...
1
vote
1answer
10 views

Apache VirtualHost - Specific Env Vars

Successfully using SetEnv with virtualhosts on Apache2 Wondering if there's a way to set virtualhost specific env vars, or whether setting them at Apache-level makes them "global" / system-wide? We ...
1
vote
0answers
33 views

Would a longer PATH environment variable slow down a system?

In Windows 7, will a long system PATH environment variable slow down the system in any noticeable/tangible way? My system PATH variable is 45-entries deep. I have an i7 930 @ 4.2GHz, but out of ...
0
votes
2answers
44 views

Win7 resets HKCU/Environment/Temp and TMP on login

I once had a fresh installation of Win7 on an SSD drive. Bearing in mind what you always hear about write cycles on these things, first thing I did was changing the TEMP/TMP variables of SYSTEM and my ...
1
vote
0answers
12 views

Environment variable with different value [duplicate]

I operate a windows system with several applications, that all need a special home variable. But if I set this "home" variable, all applications use the same value. Is there a way to set this ...
0
votes
3answers
47 views

How can I add a program path to the Windows environment variables for easy command line access?

Let's say I want to add the following path to the Windows environment variables: C:\Program Files (x86)\VideoLAN\VLC\vlc.exe Such that I can simply type the following from a command line without using ...
0
votes
0answers
18 views

Environment Variable ORACLE_UNQNAME not defined

I'm trying to install Oracle 11gR2 Entreprise Edition but during database creation, I got this Error : Environment Variable ORACLE_UNQNAME not defined And when I tried to lunch 'emctl.bat' From ...
2
votes
1answer
47 views

What's the ZSH equivalent of BASH's $PROMPT_COMMAND?

BASH supports a $PROMPT_COMMAND environment variable that defines a command to be executed before any first-level interactive prompt. I'm looking for a ZSH equilvalent of that. The documentation says ...
0
votes
0answers
13 views

setting https_proxy environment variable in a secure way

The following is the standard way suggested to set the environment variable for the https_proxy: export https_proxy=<username>:<password>@<proxy>:<port> But it clearly ...
0
votes
1answer
23 views

Does the order of the directories listed in the Windows PATH variable affect system performance in any meaningful way?

I've noticed that when programs add their directory to the PATH environmental variable, most append it to the end but a few add it at the beginning, before the windows directory. So it made me wonder, ...
2
votes
1answer
36 views

Bash: Need to export variables to parent process. Is the parent the same process?

I'd like to launch a script that sets and/or updates some environment variables. Unlike this question, I don't mind launching the script as . /path/to/my/script/myScript.sh to force the script to ...
2
votes
3answers
460 views

How to delete a file from the file system in Linux when I don't have permission?

I re-installed ns2, but didn't delete a file from the filesystem with path: /usr/bin/ns So when I type on my terminal: which ns I get: /usr/bin/ns Instead of the path I have set which is: ...
1
vote
0answers
43 views

Nested environment variable does not expanded

I can't explain the below strange issue. I have two system variables: PYTHONHOME = D:\Tools\ISDC_Tools\Scripting\Python.2.7 PYTHONPATH = %PYTHONHOME%;%PYTHONHOME%\Lib After creating a new cmd ...
0
votes
0answers
23 views

In MacOSX Mavericks, launching an app from the command line versus by double-clicking [duplicate]

In MacOSX Mavericks, what are the differences between launching an app by double-clicking it or through Spotlight, and from the command line? By launching an app such as Emacs from the command ...
0
votes
1answer
33 views

Change the timezone (TZ environment variable) for a running irssi session?

When travelling to other timezones, I set TZ=/usr/share/zoneinfo/current_timezone on remote shells where I log on to, including the shell in which I run irssi inside tmux. Can I change the TZ for a ...
0
votes
1answer
92 views

Why are the PATH environment variables handled differently when I run cmd.exe as admin?

Original post: When I start cmd.exe normally, my PATH variable only contains the paths from the system environment variable. Only when I start cmd.exe as admin does PATH contain a concatenation of ...
1
vote
0answers
36 views

PATH variable - System vs User - why is it dangerous to modify System PATH on Windows?

While installing MinGW, the users are warned about making changes to the System PATH variable: You should not alter the system path variable in any manner, or you will cause all sorts of problems ...
2
votes
2answers
50 views

Name “wmplayer” is not recognized as an executable file

I cannot run wmplayer from either cmd or PowerShell. My OS is Windows 7 64 bit. I can do it using start wmplayer but I cannot use parameters. Please, help me to handle it.
0
votes
0answers
12 views

What environment variables are set when I use ssh?

When I use ssh, I notice that my TERM variable is forwarded automatically. This is quite useful, but I'm wondering what other variables are forwarded or set. So far I've found the following ...
0
votes
1answer
12 views

Should I make `emacs` a symlink or environment variable?

When I apt-get install emacs I can just type emacs and it launches. But I decided to replace the apt repository version (23 currently) with the latest stable release (24.3). Now, I'd still like to ...
0
votes
0answers
15 views

Shell hangs after passing STDIN to EDITOR with -w parameter

I want to edit svn's svn:ignore property: svn propedit svn:ignore . This doesn't work: None of the environment variables SVN_EDITOR, VISUAL or EDITOR is set, and no 'editor-cmd' run-time ...
1
vote
1answer
50 views

How do I extend my PATH environment variable?

Being a power user, my %PATH% variable just isn't long enough to install everything I want to install. Is there any way I can extend the effective length of the variable, or otherwise get more paths ...
0
votes
1answer
25 views

Set ENV variable for all commands in current directory in mac os

Is there a way to run all commands in current directory with some ENV variables predefined? Example of what I need: I put some file, say .env in my directory, with: export SECRET='abcd123' Then I ...
0
votes
0answers
43 views

Correct way of setting Ruby2.1 as the go-to application when it referenced to/called via shell?

I have installed Ruby 2.1 on my headless Debian server (7.4) by downloading the source from https://www.ruby-lang.org/en/downloads/ and then running the routine of ./configure make make install ...
1
vote
1answer
79 views

Awesome WM: execute my aliases via run prompt?

I have aliases in my bashrc for a few programs. One example is: alias chrome='google-chrome --disk-cache-size=1000000000' How can I call this alias from the run prompt (modkey+r)? Im running ...
2
votes
1answer
110 views

How to compare 2 strings in batch and determine if variable is alphabets

I have this code for /l %%a in (0, 1, 25) do ( if /i !TextAlphabet!==!Alphabet[%%a]! ( set AlphabetNumber=%%a ) ) !Alphabet[]! is an array containing alphabets. I tried echoing !TextAlphabet! and ...
1
vote
2answers
279 views

Strange PATH issue in Windows 7 - goes null after being set

I have some sort of a problem with the PATH system variable. Since I use a lot of cmd apps and scripts I've added a lot to it. But the string's length is not the issue. I've worked around this ...
0
votes
1answer
18 views

monit fails to support dbus session

I am trying to use monit to monitor and automatically issues like crashes, memory leaks and cpu hotspinning. For one application - one that uses DBus (serving and calling funcs) just will not start. ...
0
votes
0answers
23 views

Path Variable (for tex) Replaced

While installing gcc compiler, I realized I mistakenly replaced path variable for latex editor with path variable for gcc compiler. I have windows 8 and texstudio. what could be possible path variable ...
0
votes
0answers
22 views

How to create a shortcut in the launcher with specific enironment variable?

I want to start emacs with LANG environment variable set to en_US.UTF-8, and I don't want to affect other programs. In terminal, it could be realized using LANG=en_US.UTF-8 emacs. Then I created a ...
2
votes
2answers
61 views

env -i zsh | How is this magic possible?

I'm currently working, for school, on a home-made shell, therefore I'm kind of curious nowadays about how shell vars are set. Yes, this can be really exciting ! Anyway, we obviously have to deal with ...
0
votes
0answers
20 views

Exporting Variables – Reading Them Returns Blank?

Hi – I'm using Mac OS X (Mavericks), which should be UNIX compliant. In my .bash_login, I'm exporting variables for Cocos2D-X. I know this is executing, as I have a 'echo Test' line that executes ...
0
votes
0answers
29 views

Ubuntu: `env -i bash --norc`, but include essential variables such as HOME, DISPLAY? (where are these set?)

Is there an easy way to isolate a session of bash so that only essential variables (HOME, USER, DISPLAY, etc.) are preserved? (essential in that many programs fail if HOME, DISPLAY, TERM, SHELL, etc. ...
1
vote
0answers
24 views

ifs environment variable is not inherited

In Unix the IFS variable was often used to subvert system integrity. How it was fixed? The only answer I found is in wikipedia page http://en.wikipedia.org/wiki/Internal_field_separator which says: ...
1
vote
1answer
55 views

windows env variables not resolving

I have the following env variables: VIM_HOME: %ProgramFiles(x86)%\Vim\vim74 CMD: %USERPROFILE%\cmd PATH: ...%CMD%;%VIM_HOME%;... C:\Users\me\cmd\vim.bat @echo off start vim.exe %* Prompt: > ...
2
votes
2answers
154 views

TEMP vs TMP in Environment Variables

Is it right to have these two environment variables TEMP and TMP? If I make changes to one should I make the same changes to the other? For example I was installing cygwin and the directions told me ...
0
votes
1answer
36 views

ZSH: Where to place environment variable so that launched application can pick it up?

I need an environment variable KEY="value" made available to a GUI application before starting it. The launcher file (the one that places the icon on the desktop and sidebar in Ubuntu) has a value of ...
0
votes
2answers
38 views

how to set up an environment variable that it stores a path along with another env variable but doesnt expands

I want to know how to set up an environment variable that stores other environment variable but these environment variables doesn't gets expanded when I echo instead if I use eval echo then it should ...
2
votes
2answers
104 views

Is it safe to store critical passwords in server environment variables?

I have a cluster of servers, each with configuration files that currently contain plain-text passwords for sensitive, mission-critical systems (message queues, data stores, and other services). Some ...
1
vote
1answer
44 views

How to redirect a custom environment variable to Window's %HOMEPATH%

On Linux, you can obtain the path of the home directoy via HOME, in Windows via HOMEPATH. I'd like to create a custom environment variable in Windows called HOME that "redirects" to HOMEPATH. The ...
0
votes
1answer
40 views

%PATH% in Explorer bar causes error

When I type "%PATH%" in the address bar of Explorer, I get the error "Windows can't find ...
0
votes
0answers
22 views

How can I set temporary environment for explorer (renewed) [duplicate]

On windows 8.1 command prompt (cmd.exe) I can change environment variables, i.e. path. When I then start an explorer instance, that instance takes the default (its parents?) environment, not the one ...
0
votes
2answers
74 views

Set environment variable containing at symbol

I would like to set an environment variable containing the URL of my proxy server with my credentials, as in this blog post. The problem I'm having is that my password contains an at symbol and I am ...
1
vote
4answers
51 views

Stacking Windows environment variables

Is it possible to "stack" Windows environment variables such as, "RUBY_PATH" = "C\ruby\bin" "PYTHON_PATH" = "C:\python332" "PROGRAMMING_PATH" = "%RUBY_PATH%;%PYTHON_PATH%" "Path" = ...
3
votes
1answer
78 views

Is the Windows 8 path variable supposed to be this long?

I have Windows 8 and my Path variable seems like it's way longer than it's supposed to be (I'm just starting to figure environment variables and stuff out, and trying to change my Path so that I can ...
0
votes
1answer
66 views

Modify persistent variables on a remote server host using 'ssh' from client host

As the title says, I want to modify environment variables on a remote server using 'ssh'. My first attempt was: $ ssh mysvr -l sikaiwei "getId=$ORANGE; echo $ORANGE; ORANGE=$((ORANGE+1)); echo ...
1
vote
2answers
89 views

PowerShell: Env: Avoid truncation of environment variables

PowerShell displays environment variables, one line for each. If a variable has a long enough value, it is truncated, and appended an ellipsis: > gci env: Name Value ...
0
votes
1answer
138 views

Meaning of LC_IDENTIFICATION environment variable

Just out of curiosity, what is the meaning of LC_IDENTIFICATION? The reason I am asking is, that a fresh US-English installation of Linux Mint (I guess Ubuntu would be the same), located in ...
0
votes
1answer
41 views

Windows 8 Enterprise Fail to boot after environment variable setting

I have some problem with my PC after using windows 8 enterprise edition. I use my PC for web development work. So for using PHP framework i need to set the environment variables, in my case i set to ...