PATH (all upper case) is the name of an environment variable on Unix-like operating systems, DOS, OS/2, and Microsoft Windows, specifying a set of directories where executable programs are searched for.

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63
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5answers
148k views

How do I set a user environment variable? (permanently, not session)

This is irritating me. I seen several suggestions (all using different files and syntax) and none of them worked. How do I set an environment variable for a specific user? I am on debian squeeze. ...
238
votes
6answers
400k views

How to correctly add a path to PATH?

I'm wondering where a new path has to be added to PATH environment variable. I know this is accomplished editing .bash_rc (for example), but it's not clear how to do this. This way: export ...
15
votes
6answers
1k views

How can I cleanly add to $PATH?

I'd like a way to add things to $PATH, system-wide or for an individual user, without potentially adding the same path multiple times. One reason to want to do this is so that additions can be made ...
9
votes
1answer
2k views

How to run my own program without specifying its path

Let's suppose I have compiled something and I run it like so: $ /path/to/my/executable/mycmd Hello World What do I need to do to run it like $ mycmd Hello World from everywhere in my computer? ...
14
votes
4answers
978 views

keep duplicates out of $PATH on source

I have the following code that's source-d by my .shellrc PATH="${PATH}:${HOME}/perl5/bin" PATH="${PATH}:${HOME}/.bin" export PATH but if I make changes to other code and then source this file, my ...
24
votes
12answers
6k views

Remove duplicate $PATH entries with awk command

I am trying to write a bash shell function that will allow me to remove duplicate copies of directories from my path environment. I was told that it is possible to achieve this with a one line ...
18
votes
4answers
1k views

Path independent shebangs

I have a script that I want to be able to run in two machines. These two machines get copies of the script from the same git repository. The script needs to run with the right interpreter (e.g. zsh). ...
16
votes
3answers
15k views

Where do executables look for shared objects at runtime

The title is pretty explicit. I understand how to define include shared objects at linking/compile time. However I still wonder how do executables look for the shared object (*.so libraries) at ...
6
votes
6answers
2k views

Will $0 always include the path to the script?

I want to grep the current script so I can print out help and version information from the comments section at the top. I was thinking of something like this: grep '^#h ' -- "$0" | sed -e 's/#h //' ...
0
votes
2answers
1k views

trying to install curl with homebrew, getting “incompatible library version” for libcurl.4.dylib

I am on OSX 10.9.5. I would like to use a later version of CURL than what is bundled with OSX, but I do not want to remove the OSX binary just in case, so I wanted to opt to install it via homebrew. ...
52
votes
4answers
43k views

What is the 'working directory' when cron executes a job

I have a script that works when I run it from the command line, but when I schedule it with cron I get errors that it cannot find files or commands. My questions is twofold: When I schedule a cron ...
15
votes
3answers
11k views

How to make `sudo` preserve $PATH?

I need to run a program installed on /opt/godi/sbin (a custom directory). If I add that directory to my PATH, by adding the following line to my .bashrc file export ...
5
votes
2answers
11k views

How to add home directory path to be discovered by Unix which command?

I have installed node.js at custom location and added the location to the $PATH in .profile file. Hoons-MacBook-Air:npm Eonil$ node --version v0.6.2 Hoons-MacBook-Air:npm Eonil$ which node ...
23
votes
2answers
6k views

Is it safe to add . to my PATH? How come?

I've seen people mention in other answers that it's a bad idea to include the current working directory ('.') in your $PATH environment variable, but haven't been able to find a question specifically ...
2
votes
2answers
12k views

Setting PATH vs. exporting PATH in ~/.bash_profile [duplicate]

What's the difference and which is better to use when customizing my bash profile? Documentation on the export command is scarce, as it's a builtin cmd. Excerpt from version 1 of my ~/.bash_profile: ...
1
vote
1answer
136 views

Getting sudo to work for an alias

I installed Sublime Text 3 in Fedora 20 which has got GNOME, as I couldn't get it being called from terminal I created a .bash_aliases file which a line like this: alias sublime='sublime_text' And ...
9
votes
3answers
662 views

Running an executable in PATH with the same name as an existing function

Sometimes I define a function that shadows an executable and tweaks its arguments or output. So the function has the same name as the executable, and I need a way how to run the executable from the ...
8
votes
3answers
2k views

My `which` command may be wrong (sometimes)?

I've compiled the last emacs version from the source code (v24.2) because the version installed on my machine is (quite) old for me (v21.3). I've done the usual: $configure --prefix=$HOME make make ...
2
votes
4answers
164 views

How can I find the program I'm hiding in bash

Say I have PATH="home/bob/bin:/usr/bin". I am writing a bash script /home/bob/bin/foo that will do some munging and then call /usr/bin/foo. Of course I want to be able to use this script on ...
2
votes
2answers
26k views

How to set environment variable JAVA_HOME that will be saved on exit? [duplicate]

Possible Duplicate: How do I set a user environment variable? (permanently, not session) I use Suse. First was installed jdk7, so JAVA_HOME remains like: /usr/java/jdk1.7.0_05/ After I ...
2
votes
4answers
803 views

Update Linux Path permanently [duplicate]

Possible Duplicate: How do I set a user environment variable? (permanently, not session) How can I permanently modify the PATH variable in Ubuntu? Is it possible to do it without modifying ...
1
vote
1answer
3k views

Unable to log in. xsession-errors file looks like it could be useful if I understood

I am unable to log in to my account, having recently installed Linux Mint. I had this problem with Ubuntu 13.10, and no amount of re-installations seemed to fix it. However, Mint gives me a very ...
0
votes
2answers
3k views

How to find whether a software (which may `not` be in the PATH) is pre-installed or not?

anisha@linux-dopx:~> which qmake which: no qmake in ...
21
votes
3answers
9k views

Duplicate entries in $PATH a problem?

I source bashrc's of few of my friends. So I end up having duplicate entries in my $PATH variable. I am not sure if that is the problem for commands taking long to start. How does $PATH internally ...
5
votes
3answers
11k views

Adding to path vs. linking from /bin

Our sys admin installed a software application (Maven) on the server and told everyone to add the /usr/local/maven/bin/ folder to their path. I think it could be more convenient to just link the few ...
10
votes
4answers
4k views

Adding paths to PATH using a multi-line syntax

As far as I understand, the usual way to add a path to the PATH environment variable is by concatenating paths separated by the : character. For example, if I want to add three paths to it ...
8
votes
4answers
2k views

How does Bash path completion work with sudo?

Tab path completion does not work (at least on Ubuntu and AFAIK Arch) with sudo mount <whatever> The iso file I am trying to mount is not in /etc/fstab. If I just type mount <whatever> ...
3
votes
1answer
823 views

How is the path to search for 'man' pages set?

I'm puzzled by how the path used for finding man pages is set. The "right thing" seems to happen magically. For example, if change my PATH from ...
9
votes
1answer
2k views

Where have I set my bash PATH?

I want to remove ~/bin from my PATH.  I set it up months ago when Linux (Ubuntu) was very new to me, but I don't know how I added it... Nothing shows up when I search all the files listed below. ...
3
votes
2answers
6k 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 ...
2
votes
1answer
57 views

Relative path to anything not working (while running from initramfs)

I'm working in an embedded Linux system trying to get it booting its root file system in ram using initramfs. The system comes up for the most part but then has trouble in the init scripts. I've ...
1
vote
0answers
55 views

How do the various configuration files determine MANPATH on Darwin?

On Darwin (12.2.0, OS X 10.8.2, bash 3.2.48(1)) my MANPATH appears to be determined by my PATH rather than by the various configuration files associated with man and the man path, /etc/manpaths, ...
9
votes
5answers
4k views

Find a file in the path without “which”?

I am (somehow) able to run a script: $ assemble.sh file ... [output] But which can't find it: $ which assemble.sh which: no assemble.sh in ...
4
votes
2answers
1k views

How do you set the path in a non-shell environment (KDE)? [duplicate]

I'd like to override one of the applications set in /usr/bin/. I have created an alternative with the same name in ~/bin/ which in in my PATH (as set both in .bashrc and in .profile). When I start ...
3
votes
4answers
556 views

Decomposition of path specs into longest-common-prefix + suffix

Given any two absolute Unix path specs1, one could decompose each spec as the concatenation of a longest common prefix and a specific suffix. E.g., /abc/bcd/cdf -> /abc/bcd + cdf ...
3
votes
1answer
2k views

ps command not giving output in home directory

I am logging into a solaris server, switching to bash, then switching to another user "sruser" and switching to bash. /home/batch/sruser/ is the home directory of the user "sruser". The issue is ps ...
2
votes
1answer
352 views

How to use libraries installed by nix at run-time?

I'm using nix in "single-user mode" in a system where I'm not the root (see below for a description of my nix setup). I wanted to quickly run one of my binaries which is dynamically linked with a ...
2
votes
5answers
10k views

Removing a directory from PATH

I'm trying to compile wxWidgets using MingW, and I have cygwin in my path, which seems to conflict. So I would like to remove /d/Programme/cygwin/bin from the PATH variable and I wonder if there is ...
0
votes
2answers
3k views

installed java, but java -version not showing new java

I just installed jdk1.6.0. I have tried multiple ways to set the path variable and make java 1.6 my new running version. And nothing is working. Running centos5 virtual machine. alternatives --config ...
8
votes
2answers
7k views

Why does sshd requires an absolute path?

Why does sshd require an absolute path when restarting, e.g /usr/sbin/sshd rather than sshd Are there any security implications? P.S the error message: # sshd sshd re-exec requires execution with ...
6
votes
1answer
414 views

zsh - fully expand binary path on <tab>

In my current zsh behaviour, hitting tab after typing "sudo" just adds a space. $ sudo ... What I really want is for the tab to fully expand to the path of the binary it is about to execute when I ...
4
votes
2answers
1k views

Getting the current path in .desktop EXEC command

Im trying to make a .desktop file run a .sh which is stored in the same directory as the .desktop. The whole directory needs to be portable and moved from machine to machine. my run script is run.sh ...
3
votes
4answers
2k views

Bash script to output path to USB flash memory stick

How would I return (output) the path to any USB flash memory stick(s) connected to the local computer using bash (Ubuntu and Linux Mint)? Background: I'm providing users with an automated backup ...
3
votes
2answers
1k views

Checking if PATH contains $HOME/mydir and adding it if not (all in a script) [duplicate]

Possible Duplicate: keep duplicates out of $PATH on source I am not an expert with Unix scripting. Some of my scripts are located in $HOME/mydir. Unfortunately, they are not accessible from ...
2
votes
2answers
95 views

Use alternatives or adding to PATH?

I'm a bit confused about the proper way to make a script globally available from the terminal, like a command. There are two ways, using the alternatives utility, basically making a symlink to ...
2
votes
2answers
188 views

How to add new elements to PATH for daemons (or other best practices)?

I want to add some scripts for custom administrative work to a Linux server (Ubuntu 12.04). Ultimately those scripts are callback scripts from at least one daemon (PostgreSQL in my case but that ...
2
votes
4answers
822 views

Add multiple subdirectories under the same parent directory to PATH

I have installed some tools and put it under $HOME/tools/ and each tool has its own /bin directory that contains the executable program. I now have the path to each individual /bin in my $HOME/.bashrc ...
2
votes
1answer
147 views

/etc/paths in OS X and other Unices

Is /etc/paths read by every shell that I run in OS X? For example, if I use zsh, will it parse /etc/path to populate $PATH? What exactly is the sequence that OS X follows to populate $PATH? Does it ...
2
votes
2answers
2k views

$PATH not modified inside LXDE on Raspbian

I have a bin directory in home/pi. This is added to my $PATH when I login (by .profile), but when I go into LXDE and use LXTerminal my bin directory is no longer added to $PATH.
2
votes
2answers
506 views

What could cause which to not show something in the path?

There is an executable in my path that I believe is a perl script. >$scriptname $outputofscript but >which $scriptname which: 0652-141 There is no $scriptname in $path and the path it ...