Slackware :: Standard Location For Defining Environment Variables

Jan 4, 2011

I'm setting up Tomcat right now, and I've been directed to create a tomcat_home (catalina_home as of writing) environment variable.

Where is the default location for env variables in Slackware? My current inclination is to create a new script /etc/profile.d/

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Slackware :: SU Command - Environment Variables Missing

Jun 30, 2010

I've just noticed something odd with 'su'. When you run 'su' with both the '-' (aka -l) and -c command options like this: "su -l user -c command" it doesn't appear to run /etc/profile before running the specified command even though the -l option is specified. If you run "su -l user" without the -c it does run /etc/profile.

Now, on other linux such as fedora it works as expected and runs both /etc/profile followed by the command specified on the '-c'. I'm fairly sure it used to work this way on Slackware (and every other UNIX I've ever used) too. "su -l root -c env" is a good way to see, as you'll find most the environment variables are missing.

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Ubuntu :: Defining Variables With Printf?

Mar 24, 2010

I am trying to use bash 'printf' to format an environment variable.Doing this I get on the screen just the format I need (underscores mean blank spaces):prompt> printf "%10s" "1.23"________1.23Unfortunately, when this is assigned to a variable, the format disappears:prompt> X=`printf "%10s" "1.23"`prompt> echo $X1.23Does anyone know what can be done in this case to get a proper format?Why does not 'printf' respect the left blank spaces when assigning values to a variable?

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Programming :: C-shell Scripting Syntax Error When Defining Two Variables A1 And A2

Apr 5, 2011

I am trying to modify a script for research purposes and am having difficulty here as I have little prior experience with C-shell scripting.

The script looks as follows (it includes tcl commands like runFEP that you can ignore)


for ((old=1, new=2; old<=4; old++,new++))
cat > input${new}.conf <<EOF

My question: I keep getting a syntax error when defining my two variables a1 and a2. I essentially need these variables to be
a1 = value of variable old divided by 50
a2 = value of variable new divided by 50

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Programming :: Location Of - Gnu - C++ Standard Library

Jul 21, 2010

Where is the location of the header files for the c++ standard library?

I assume that they were installed by gnu g++, please correct me if i'm wrong.

I'm running ubuntu 10.04 with g++ 4.4.

I looked in /usr/lib/gcc/i486-linux-gnu/4.4/include, but this directory contains only the following:


Which doesnt seem to include the really basic things like iostream, for example.

Where can I take a look at the header files for these standard c++ libraries?

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Fedora :: How To Set Environment Variables

May 18, 2010

I just installed valgrind on my Fedora12 machine.

$ valgrind // 1
$ valgrind: Command not found. //error
$ /usr/local/bin/valgrind // 2 works fine


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Networking :: Location Of Standard Interface Flags On SUSE

Jun 15, 2010

I am reporting various network statistics in a c++ program by reading the values out of /proc. However, I am having trouble determining the link status. In particular, I am wondering:

1. How are the standard interface flags (IFF_UP, IFF_RUNNING) as referenced in if.h accessed from user land? The ifconfig man page lists its files as

/proc/net/socket (doesn't exist in suse), /proc/net/dev, and /proc/net/if_inet6. None of these seem to contain these flags.

2. ip link show reports a "NO-CARRIER" flag. How does this correlate with the "UP" and/or "RUNNING" flags as reported by ifconfig, and how is it accessed from user space?

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Server :: Standard Location For Downloading Source Code?

Feb 18, 2011

I'm about to recompile PHP from source and was planning to download the source code to my Ubuntu machine. Is there a standard place where all the source code goes? I know that PHP has many dependencies and would like to hopefully put it in the right place so as to satisfy as many as possible.

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Debian :: Python 2.7 Can't See OS Environment Variables

Aug 23, 2015

I'm trying to compile Ardour on jessie amd64 using the Debian source code (there's already an ardour package but I want to use different compile options). I've applied the Debian patches and have all the required dependencies installed.

Scons quits with a KeyError message from python2.7 saying that os.environ['DEB_HOST_ARCH_OS'] is not defined.

Checking with 'dpkg-archtecture -l' shows that DEB_HOST_ARCH_OS=linux, but 'print os.environ["DEB_HOST_ARCH_OS"]' in python says that name 'os' is not defined. The scons script has 'import os' at the top so it should be seeing it.

How do I make this visible to python (I'm assuming this problem is specific to the jessie python2.7 installation and not python in general)?

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Fedora :: Changing Environment Variables?

Oct 11, 2009

How do I edit my .bash_profile so recursive directories are on my path without manually typing all the directories? For example, I want to have /home/woodenbox/SU, /home/woodenbox/SU/bin, /home/woodenbox/SU/bin/src, etc on my path without actually having to write the paths for all the subdirectories

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Fedora :: How To Set Environment Variables Permenently

May 3, 2011

How to set JAVA_HOME environment variables permanently such that it will not have to be set each time it has to be used.

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General :: Any Other Ways To Set Environment Variables

May 20, 2010

I am running Red Hat Linux Enterprise 5; I am always using the export command to set environment variables.Are there any other ways to set environment variables and what are the advantages/disadvantages of them?

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General :: Environment Variables Not Being Set Correctly?

Jun 21, 2010

he $g09root is picked up ( in both the csh and the bash), but not the $GV_DIR or the $GAUSS_SCRDIR. I guess it's some stupid error, but it is highly frustrating.Here is the .profile file:Quote:

# To make use of this feature, simply uncomment one of the lines below or
# add your own one (see /usr/share/locale/locale.alias for more codes)


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Software :: Environment Variables And Konsole In KDE?

Apr 27, 2011

I have installed jdk in my pc, and i've set up the environment variable on the .bashrc file in my home directory although i can use java's compiler and interpreter in terminal (xfce) if i try to use these commands in konsole (kde) for some reason they don't work. do i need to edit other file?

Nevermind, i found out that konsole was being executed with -e $SHELL -l parameters, once i took them out, and just ran konsole everything worked.

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Software :: Set Environment Variables That Don't Need Terminal ?

Jun 12, 2011

I've added an export command to /etc/profile, but the environment variables don't show up when not using a terminal.

For example: when I add:


To my /etc/profile (then open a new terminal so it registers) and run a graphical program from that terminal, the graphical program can see see the environment variable A.

However if I add the export command to my /etc/profile, then reboot so everything registers, then run that same graphical program from a menu (such as Applications->Accessories->Myprogram), it can't see the environment variable.

What I'm trying to say is basically, my environment variables only show up if I run a program in a shell. Is there a way to set environment variables that will show even without a shell?

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Programming :: Using Environment Variables In Scripts?

Jun 19, 2010

Trying to mounts three cifs shares at boot up. I want to mount the shares under three different sub directories in the user's home directory:

share 1 mounted to /home/(insert username here)/movies
share 2 mounted to /home/(insert username here)/music
share 3 mounted to home/(insert username here)/software

I would like to use the environment variable HOME to dynamically build the mount point parameter. I've tried:

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Debian :: Unable To Change Environment Variables

Dec 17, 2015

I installed debian 8 on a usb drive using this guide. I used a debian 8.2 64-bit image with mate. It has all worked as I wanted it to. However recently I needed to change the PATH variable, and create another environment variable. I have not been able to do neither. What I have tryed (from google):

1. adding "export PATH=$PATH:/xxxx/" to etc/profile or to /home/user/.profile
2. adding ":/xxxx/" to a point in /etc/profile where the PATH variable is set
3. creating a script in /etc/profile.d which run "export PATH=$PATH:/xxxx/"

(where xxxx is the the location i want to add)

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Debian Configuration :: Environment Variables For All Users

Nov 27, 2015

I'm newbie on Debian, and I just installed Debian 8.2. (I used to run openSuse, and I see Debian is quite different.)

Where should I set environment variables (like PATH or JAVA_HOME) in order to affect all users?

I read some documentation about that, but It is not clear for me, the difference among "/etc/environment", "/etc/bash.bashrc" and "/etc/profile".

(In openSuse, I used to create a file "/etc/bash.bashrc.local" and set the environment variables there, in order these settings are not lost with updates.)

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Fedora :: Script Unable To Set Environment Variables

Nov 24, 2010

I've never done much scripting myself and I'm quite unused to the bash as well, but anyway, Here's my problem.

I've a script which is supposed to set some environment variables, using export. However, if I check those variables using echo, they appear not to be set (they are empty). If I set the same variables manually, everything is fine, of course, but I don't want to set them each time manually.

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General :: Exporting Environment Variables In Ubuntu?

Jun 2, 2010

I know many people have asked about environment variables before, but I am having a hard time dealing with these paths while ensuring I don't mess around with the original settings. How would you go about executing these commands in Ubuntu in terms of environment variables?

put /home/stanley/Downloads/ns-allinone-2.34/bin:/home/stanley/Downloads ns-allinone-2.34/tcl8.4.18/unix:/home/stanley/Downloads/ns-allinone-2.34/tk8.4.18/unixinto your PATH environment; so that you'll be able to run itm/tclsh wish/xgraph.


(1) You MUST put
into your LD_LIBRARY_PATH environment variable.


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General :: Setting (permenant) Environment Variables In 10.0.4

Sep 4, 2010

I am running an application which requires setting environment variables to be set.At the moment, the way I am achieving this is by exporting the EV at the command line, and then running the app from the command line.I want to be able to run the app from my menu (it is already a menu item after I installed it).How may I set the env var so that it is always available, so I can just run the app from the menu instead of from the CLI?

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Ubuntu :: Cannot Save Environment Variables In Terminal?

Feb 12, 2010

In terminal, I use the command " export XXX="xxx" " to create a new environment variable, and then " env | grep XXX " to check if it is existed. But when I run the terminal again, the variable I created is disappeared. I've found it just can't save the variables I created..

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Ubuntu :: Update Environment Variables Forever?

Apr 7, 2010

I've created a new environment variable and updated another one (PATH). I just want to save this changes once after reboot and forever. This is because I want to run a program (tecplot) just typing 'tec360' in the command line. If I create those new variable ( TEC_360_2008=/usr/tec360_2008 ) and update the PATH variable ( export PATH=$PATH:$TEC_360_2008/bin ) then bash detect the command 'tec360' and it runs my program. The problem is that this changes are not saved after rebooting.

According to the manual, I have to update the .bash_profile in my home directory but I don't have this file in this directory (neither in other directory). I only have .bash_history, .bash_logout and .bashrc in the home directory. I have updated .bashrc (typing . ./.bashrc) but it is not working.

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Ubuntu Installation :: Set Some Custom Environment Variables

May 13, 2010

I need to set some custom environment variables.

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Ubuntu :: Sudo Doesn't Keep Environment Variables

Jul 19, 2010

When I execute something with sudo, the environment that it executes in doesn't have all the environment variables from /etc/profile{,.d/} defined. I googled around and found that there is a way to get the environment variables from the calling environment to be carried over to sudo's own environment, but that's not exactly what I want. I just want sudo to read the /etc/profile and /etc/profile.d/ before executing commands.

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Ubuntu :: Modify To Set The Environment Variables For FSCK?

May 9, 2011

Does anyone know what file I have to modify to set the environment variables for FSCK? I can't run FSCK on my file system because it runs out of memory after about 10 minutes. This variable sounds like it will solve all of my problems but I can't find the file to modify to set the variable or what parameters it takes (number? yes/no?, etc).I'm trying to recover has a lot of information on it that I would really like to get back.

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Ubuntu :: Setting Environment Variables In Server 10.04

Jul 4, 2011

I always have to google about setting environment path variables when I install new software. My basic problem is that I dont know whether these variables need to be set globally or not. I have read a number of mails/tutorials which say that Environment variables should be set by simply doing an export EDITOR=nano export EDITOR

additionally I have read that it should be written into /etc/bash.bashrc

But are these really global variables or local? I want the variables to be set
even after I have logged out.

so I could also write the variable here...


or here


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Programming :: Use Environment Variables That Are Defined Outside Of The Script?

Feb 8, 2011

I am writing an expect script and I wish to use environment variables that are defined outside of the script.

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General :: Use Environment Variables In The .bashrc File?

Apr 16, 2011

I am trying to include my directory /usr/sbin in it's serch path for executable files using an environment variable. Would the input be: PATH="/usr/sbin"? And also upon start up, my shell should create the PRINTER environment variable which should resolve to the word sales...would that input be: PRINTER="sales"? If someone could help me with these two questions,

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General :: Set Environment Variables That Use Everyday Permanently ?

Jul 13, 2010

I have bunch of environment variables that i have to set always for my work.Someone mentioned i can write a script to dp this and i googled it but haven't been successful so far and have to manually do them every time. I have a tcsh shell.I read that i need to change the .login or .tcshrc files but havent been successful in finding these.

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