For the life of me, I can't seem to add my Quartus bin directory to the PATH variable.
To add for all users, I edited /etc/profile by adding the line below as follows: (opening the file with sudo gedit /etc/profile)
/home/jaco/altera/14.0/quartus/bin/
I close the file, execute . ./etc/profile, after which I execute echo $PATH. This displays the directory I've just added, but when I open another shell and execute echo $PATH again, the directory is gone.
What am I doing wrong?
I have never made changes to /etc/profile but I know that env variables, aliases etc can be added to ~/.bashrc. You usually have to start a new shell or run source ~/.bashrc after editing your .bashrc file to load the new cahnges.
I think you will have to add it to all users. Also (this helps for future accounts) you can add it in your /etc/skel/.bashrc file. That is the skeleton file used when creating new users.
Related
[dawidn:/mnt/c/Users/dawin]$
This is my default shell directory, all of my projects are on partition d. Is there a way to make my shell start at a certain folder by default?
Edit the file ~/.bashrc
At the end of the file add the line:
cd /mnt/d/.....
Save an close the file.
On logging back into bash, you should have the specified directory as your initial current working directory.
I have a .git directory in my Dropbox, to store data for my website. In the directory, I have a .bashrc file, like this:
directory and .bashrc
When I type this into the bash terminal, it echo's
$ source .bashrc
my login
but when I restart terminal, it echo's nothing. I have to source it again.
I've read a few posts about this issue, about having to source it again and again but they said that if you do it to .bashrc it will work everytime. Mine doesn't. Where am I messing up?
When bash goes looking for its startup files, it generally looks for .bashrc in your home directory (where it currently isn't).
If you want to source a separate .bashrc file, probably the easiest solution is to put something like this into your actual one (the one that bash will run), $HOME/.bashrc:
otherOne="/somewhere/else/.bashrc"
if [[ -x "${otherOne}" ]] ; then
. "${otherOne}"
fi
I want to add multiple path in $path variable like java path and php path . how to do that in linux?
I am doing something in bash_profile like :
PATH=$JAVA_HOME/bin:$PATH:/usr/java/jdk1.7.0_45/bin/:$AWS_AUTO_SCALING_HOME/bin
$PATH can have several paths separated by a colon (:). E.g.:
export PATH=/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/myuser/bin
Set the $PATH environment variable to include the directory where you installed the bin directory with shell scripts and two consecutive export entries as in example.
Example:
export ANT_HOME=/path/to/ant/dir
export PATH=${PATH}:${ANT_HOME}/bin:${JAVA_HOME}/bin
To make them permanent entries update the bash_profile file.
One way to add multiple executables to the $PATH variable is:
export PATH=/path/to/executable1:\
/path/to/executable2:\
/path/to/executable3:\
/path/to/executable4
If a $PATH already exists in .bash_profile, and you want them to take precedence over executables (like java and php), you can do:
export PATH=$PATH:/path/to/executable1:\
/path/to/executable2:\
/path/to/executable3:\
/path/to/executable4
If the path to any executable contains whitespaces, add the part / ... executableX in quotes.
Once you're done making changes in your bash_profile, source the file in a terminal session so that changes are effective immediately:
source .bash_profile
Open Terminal and Type sudo gedit /etc/profile to open system path file
Go to Bottom
VARIABLE_NAME1=/your/path/to/location1
VARIABLE_NAME2=/your/path/to/location2
PATH=$PATH:$VARIABLE_NAME1:\$VARIABL3_NAME2
export PATH
Logout from user and Relogin
If you're on a Mac, the best way in my opinion would be following Chamindu's answer with a slight tweak. using nano or vim whichever you prefer, but I'll use nano as it's easier for most people.
Open Terminal and Type nano ~/.bash_profile to open bash profile.
At the top, type or copy and paste the following:
FLUTTER="/Users/MyUsername/development/flutter/bin"
VSCODE="/Applications/Visual Studio Code.app/Contents/Resources/app/bin"
PATH=$PATH:$FLUTTER:\$VSCODE
export PATH
If you're using nano as I suggested, do a control + x on your keyboard to exit.
press Y to save your changes.
In the terminal type source ~/.bash_profile to refresh your bash profile/environment variables.
Now you can navigate to any directory and call the files in your path.
Note:
Swap out FLUTTER and VSCODE for your variable names of choice.
You would only need to use sudo if you're not using the admin account.
sudo CPATH=/usr/include/linux/:/usr/src/linux-headers-5.17.0-1-common/include/linux/ vmware-modconfig --console --install-all
I want to add a small script to the linux PATH so I don't have to actually run it where it's physically placed on disk.
The script is quite simple is about giving apt-get access through a proxy I made it like this:
#!/bin/bash
array=( $# )
len=${#array[#]}
_args=${array[#]:1:$len}
sudo http_proxy="http://user:password#server:port" apt-get $_args
Then I saved this as apt-proxy.sh, set it to +x (chmod) and everything is working fine when I am in the directory where this file is placed.
My question is : how to add this apt-proxy to PATH so I can actually call it as if it where the real apt-get ? [from anywhere]
Looking for command line only solutions, if you know how to do by GUI its nice, but not what I am looking for.
Try this:
Save the script as apt-proxy (without the .sh extension) in some directory, like ~/bin.
Add ~/bin to your PATH, typing export PATH=$PATH:~/bin
If you need it permanently, add that last line in your ~/.bashrc. If you're using zsh, then add it to ~/.zshrc instead.
Then you can just run apt-proxy with your arguments and it will run anywhere.
Note that if you export the PATH variable in a specific window it won't update in other bash instances.
You want to define that directory to the path variable, not the actual binary e.g.
PATH=$MYDIR:$PATH
where MYDIR is defined as the directory containing your binary e.g.
PATH=/Users/username/bin:$PATH
You should put this in your startup script e.g. .bashrc such that it runs each time a shell process is invoked.
Note that order is important, and the PATH is evaluated such that if a script matching your name is found in an earlier entry in the path variable, then that's the one you'll execute. So you could name your script as apt-get and put it earlier in the path. I wouldn't do that since it's confusing. You may want to investigate shell aliases instead.
I note also that you say it works fine from your current directory. If by that you mean you have the current directory in your path (.) then that's a potential security risk. Someone could put some trojan variant of a common utility (e.g. ls) in a directory, then get you to cd to that directory and run it inadvertently.
As a final step, after following the solution form proposed by #jlhonora (https://stackoverflow.com/a/20054809/6311511), change the permissions of the files in the folder "~/bin". You can use this:
chmod -R 755 ~/bin
make an alias to the executable into the ~/.bash_profile file and then use it from anywhere or you can source the directory containing the executables you need run from anywhere and that will do the trick for you.
adding to #jlhonora
your changes in ~./bashrc or ~./zshrc won't reflect until you do
source ~./zshrc or source ./bashrc , or restart your pc
I have first executed the command: export LD_LIBRARY_PATH=/usr/local/lib
Then I have opened .bash_profile file: vi ~/.bash_profile.
In this file, I put:
LD_LIBRARY_PATH=/usr/local/lib
export LD_LIBRARY_PATH
Then if the terminal is closed and restarted, typing echo $LD_LIBRARY_PATH displays no result.
How to set the path permanently?
You should add more details about your distribution, for example under Ubuntu the right way to do this is to add a custom .conf file to /etc/ld.so.conf.d, for example
sudo gedit /etc/ld.so.conf.d/randomLibs.conf
inside the file you are supposed to write the complete path to the directory that contains all the libraries that you wish to add to the system, for example
/home/linux/myLocalLibs
remember to add only the path to the dir, not the full path for the file, all the libs inside that path will be automatically indexed.
Save and run sudo ldconfig to update the system with this libs.
Keep the previous path, don't overwrite it:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/
You can add it to your ~/.bashrc:
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/' >> ~/.bashrc
Add
LD_LIBRARY_PATH="/path/you/want1:/path/you/want/2"
to /etc/environment
See the Ubuntu Documentation.
CORRECTION: I should take my own advice and actually read the documentation. It says that this does not apply to LD_LIBRARY_PATH: Since Ubuntu 9.04 Jaunty Jackalope, LD_LIBRARY_PATH cannot be set in $HOME/.profile, /etc/profile, nor /etc/environment files. You must use /etc/ld.so.conf.d/.conf configuration files.* So user1824407's answer is spot on.
Alternatively you can execute program with specified library dir:
/lib/ld-linux.so.2 --library-path PATH EXECUTABLE
Read more here.
The file .bash_profile is only executed by login shells. You may need to put it in ~/.bashrc, or simply logout and login again.
For some reason no one has mentioned the fact that the bashrc needs to be re-sourced after editing. You can either log out and log back in (like mentioned above) but you can also use the commands: source ~/.bashrc or . ~/.bashrc.
Put export LD_LIBRARY_PATH=/usr/local/lib in ~/.bashrc [preferably towards end of script to avoid any overrides in between, Default ~/.bashrc comes with many if-else statements]
Post that whenever you open a new terminal/konsole, LD_LIBRARY_PATH will be reflected
Go to the home folder and edit .profile
Place the following line at the end
export LD_LIBRARY_PATH=<your path>
Save and Exit.
Execute this command
sudo ldconfig
You could try adding a custom script, say myenv_vars.sh in /etc/profile.d.
cd /etc/profile.d
sudo touch myenv_vars.sh
sudo gedit myenv_vars.sh
Add this to the empty file, and save it.
export LD_LIBRARY_PATH=/usr/local/lib
Logout and login, LD_LIBRARY_PATH will have been set permanently.
I do the following in Mint 15 through 17, also works on ubuntu server 12.04 and above:
sudo vi /etc/bash.bashrc
scroll to the bottom, and add:
export LD_LIBRARY_PATH=.
All users have the environment variable added.
In Ubuntu 20.04 Linux this is just not obvious and straight forward as it should be.
I will attempt to make it simple for anyone who is pulling out their hair just like I was with my Ubuntu 20.04.3 Linux.
Start by identifying the path where your library files' folder is located. In my case, the *.so files that I was working with were located in a folder called libs and this folder's path in my Ubuntu box is /usr/lib
So now I want to add the path /usr/lib to LD_LIBRARY_PATH such that when I run echo $LD_LIBRARY_PATH in my Ubuntu terminal I will be able to see the path /usr/lib echoed as shown below;
joseph$ echo $LD_LIBRARY_PATH
:/usr/lib
Here are the steps I used
Open terminal in Ubuntu 20.04 Linux box
Change path to /etc/ld.so.conf.d/ by running cd /etc/ld.so.conf.d/
Create a file with a *.conf extension at the end with a text editor
like e.g. vim or gedit in my case I created it as follows sudo gedit my_project_libs.conf
Inside the .conf file that I created named my_project_libs.conf
I added the path to my libs by adding this line export
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib
Thereafter, I then run gedit ~/.bash_profile to open the
~/.bash_profile file so that I can add inside it this line export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib which includes the path to the folder with my libraries /usr/lib that I want
included in LD_LIBRARY_PATH
I also ran gedit ~/.bashrc to open the
~/.bashrc file so that I can add inside it this line export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib which includes the path to the folder with my libraries /usr/lib that I want
included in LD_LIBRARY_PATH
When you are done adding the line in step 5, save and close.
In your terminal, type the following sudo ldconfig and press
enter on your keyboard.
Close all your open terminals that you were using then open a new terminal session and run echo $LD_LIBRARY_PATH If you see the path you added is echoed back, you did it right.
In my case, this is what I see :/usr/lib when I run echo $LD_LIBRARY_PATH in my newly opened Ubuntu terminal session
joseph$ echo $LD_LIBRARY_PATH
:/usr/lib
That's how I got it to work for me in my Ubuntu 20.04.3 Linux box.
Everyone seems to be missing the forest for the trees.
The real answer is that '~/.bash_profile' is by default only sourced for LOGIN SHELLS.
The bash config file you are probably looking for if you are starting and closing terminals from your desktop GUI is '~/.bashrc', which is the file sourced by default when starting interactive, non-login shells.
https://apple.stackexchange.com/questions/51036/what-is-the-difference-between-bash-profile-and-bashrc