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 ...

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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 ...
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14 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 ...
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3answers
742 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 ...
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1answer
1k 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 ...
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2answers
667 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 ...
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1k 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 ...
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1answer
63 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, ...
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1answer
65 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 ...
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3answers
686 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: ...
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254 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 ...
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1answer
106 views

Limitation in number of entries in System variables Windows 7 64-bit

I've encountered that there might be a limit of how many entries you can have in System Variables in Environment Variables, can someone verify my suspicion? I'm not talking about how many characters ...
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24 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 ...
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1answer
361 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 ...
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1answer
1k 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 ...
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263 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 ...
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2answers
195 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.
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1answer
21 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 ...
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1answer
110 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 ...
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1answer
40 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 ...
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140 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 ...
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1answer
526 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 ...
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1answer
6k 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 ...
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3answers
2k 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 ...
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1answer
32 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. ...
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1answer
62 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 ...
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2answers
129 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 ...
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72 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. ...
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58 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: ...
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1answer
146 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: > ...
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5k 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 ...
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1answer
533 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 ...
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49 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 ...
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2answers
1k 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 ...
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1answer
61 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 ...
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1answer
53 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 ...
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0answers
23 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 ...
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2answers
741 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 ...
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4answers
110 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" = ...
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2answers
191 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
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1answer
196 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 ...
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2answers
450 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 ...
2
votes
1answer
488 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 ...
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1answer
78 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 ...
2
votes
1answer
88 views

Export bash function over SSH

I would like to export a bash function over ssh to use it in GNU parallel. That question seems to be answered here Exporting bash functions through ssh but I don't seem to be able to get it to work. ...
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89 views

Driving me crazy. SETX /?

Rosalee is no longer a user, but her name remains %everywhere% I am thinking export registry and find/replace all Rosalee's or trying to use setx, but I cannot figure out the syntax for setx. ...
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1answer
10k views

How can I set environment variables for GUI apps in OS X Mavericks?

I've been struggling to get an app to run in OS X Mavericks. I finally was able to get it to run by drilling into the .app bundle and running the shell script directly. It seems that JAVA_HOME needed ...
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1answer
562 views

How to generically refer to the AppData folder on the Windows command line?

The original User's Profile directory lives in a directory like C:\Users\username\AppData. How can I refer to the current user's profile directory when using the Windows command line? By searching I ...
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1answer
545 views

environment variable for hkey_users/software

Many of my software configurations are stored in theHKEY_USERS\S-1-5-21-2715202203-4090495733-1863141328-1000\Software reg-folder. For developing Portable apps, I want to know the environment variable ...
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2answers
928 views

how to access variables that are set in a different windows batch file?

i have a windows batch file - called fileA.bat, which contains a variable set in it. Sample code of fileA.bat: set fileA_username=michael now i have another batch file, called fileB.bat, which ...