150
votes
Accepted
Setting PATH variable in /etc/environment vs .profile
Summary:
If you want to add a path (e.g. /your/additional/path) to your PATH variable for your current user only and not for all users of your computer, you normally put it at the end of ~/.profile ...
- 108k
78
votes
Accepted
Where is WSL located on my computer?
If I read your post literally, there may be a few different questions there:
Where is your WSL Ubuntu instance installed on your machine?
(Presumably based on the first question) How do I access ...
- 18.1k
56
votes
Accepted
Why isn't tilde recognised as home folder in this case?
Quoting, even with double quotes, suppresses tilde expansion.
~ can be used as a path to your home directory in contexts where tilde expansion is performed. ~ is not like . or ... There aren't ...
- 118k
54
votes
Variable path issue : conda command not found
Try adding below line to your .bashrc file
export PATH=~/anaconda3/bin:$PATH
then try:
conda --version
to see version
- 641
51
votes
Why doesn’t `mv file /dir` move the file to a subdirectory of the current working directory?
Provided a directory with this name doesn’t exist, you renamed the file to openvpn located in your root directory /. To revert this, run:
sudo mv /openvpn /etc/MyFile.conf
If the directory did exist ...
- 40.1k
48
votes
Setting PATH variable in /etc/environment vs .profile
This answer is mainly about the order in which environment variables like PATH are assigned when specified in different configuration files. I do also cover where you should usually set them, but the ...
- 118k
45
votes
Accepted
When writing a bash script, how do I get the absolute path of the location of the current file?
You can get the full path like:
realpath "$0"
And as pointed out by Serg you can use dirname to strip the filename like this
dirname "$(realpath $0)"
or even better to prevent awkward quoting and ...
- 70.5k
44
votes
How to put executable to /usr/local/bin?
Just copy it to /usr/local/bin.
sudo cp /path/to/profit /usr/local/bin
- 33.6k
35
votes
How to put executable to /usr/local/bin?
There are various things to consider; just for completeness:
First of all, you should make sure that this executable has in fact the required permissions.
sudo chmod a+rx /path/to/profit
(for ...
- 2,105
27
votes
Show full path to file in terminal
Use readlink with -e flag. Not only it gives you full path to file, it also presents real path of the symlinks
$ readlink -e ./out.txt ...
- 105k
24
votes
Accepted
Is ./ (dot slash) a command?
./ is not a command. The command is ./truecrypt-7.2-setup-x86.
Your shell and programs like sudo will treat a command as a pathname when it contains at least one / character. Since . represents ...
- 118k
24
votes
Accepted
Where are gnome extensions preferences stored?
Schema Files
The default extension settings are located in an *.xml file in the following directory if you installed the extension globally:
/usr/share/gnome-shell/extensions/<extension directory&...
- 12.4k
22
votes
Accepted
After installing youtube-dl on Ubuntu 21.10 with the instructions on github many applications, including default text editor, broke
Here is a theory:
Before you ran the first command, /usr/local/bin/youtube-dl already existed and was a symlink to /usr/bin/firejail. Probably from some previous installation.
The curl ... -o /usr/...
- 1,200
21
votes
Is ./ (dot slash) a command?
The ./ part of the command is saying "Look in the current directory, and execute the command 'truecrypt-7.2-setup-x86' from here". You need to run this command from the directory where you unpacked ...
- 21.3k
21
votes
Accepted
How can I add ~/.local/bin to my PATH?
If you make a ~/bin folder in your home folder, it'll already be in your default path. No need to modify anything, or add folders to a hidden .local folder. Create the ~/bin folder, log out, log back ...
- 70.7k
20
votes
Accepted
Windows filepath converted to Linux filepath
There would be a way to do both replacements at once using sed, but it's not necessary.
Here's how I would solve this problem:
Put filenames in array
Iterate over array
filenames=(
'C:\Users\abcd\...
- 14.2k
19
votes
Accepted
How to set LD_LIBRARY_PATH permanently?
You just need to add the following line to your ~/.bashrc file:
LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/home/lclab/installed/boost/boost_1_65_0:/home/lclab/installed/rdkit/rdkit-Release_2016_03_1/lib:/...
- 40.1k
18
votes
How to put executable to /usr/local/bin?
step 1: chmod +x /path/to/profit
step 2: sudo cp /path/to/profit /usr/local/bin/
step 3: profit
- 281
18
votes
Accepted
How to find the path of a specific application (Google Chrome)?
If you have installed the stable version of Google Chrome, run the following commands to find its location
whereis google-chrome-stable
or
which google-chrome-stable
- 68.6k
17
votes
Accepted
PATH=$PATH:`pwd` - What happens when this command is executed?
If you execute the command in your question, you should get an error message:
$ PATH =$PATH:`pwd`
bash: PATH: command not found
If the space is a typo, and you actually run this:
PATH=$PATH:`pwd`
...
- 101k
17
votes
Accepted
How to create an alias for a "cat" file usable in a path
You could use a named pipe:
mkfifo /path/myfile
cat file1 file2 > /path/myfile &
Here, either the cat command has to be sent to the background, or you can run tool_x in another terminal, as ...
- 198k
16
votes
Accepted
Pytest is in PATH but not found
To avoid searching your PATH every time an executable command is called, bash saves previously used commands in a lookup table, or hash.
If you subsequently move the executable or install another ...
- 136k
16
votes
How to set anaconda as a default python?
I have the same setup as you desire. In my case the anaconda installer added an entry in my ~/.bashrc file. I don't know why yours did not. So to get to do what you want, add this to your ~/.bashrc ...
- 36.7k
16
votes
Accepted
How to know the path of a particular software?
Find the path of an executable
Best way
type executable
Check out this question to learn more about how type is better. (Thanks, comments!)
Other ways
whereis executable
which executable
Those ...
- 585
12
votes
How to find python installation directory on Ubuntu
Here is a simple way, run in terminal:
type -a python
or
type -a python3
12
votes
How can I sanitize or escape absolute paths returned by realpath or readlink?
How to do this correctly
First of all, always quote your variables. What you are trying to do works fine if you quote it properly:
$ pwd
/home/terdon/foo/\e[92mM@r|< +'|'|_e|\|\|0rth [`-_-"]
$ ls
...
- 101k
11
votes
How to find full path of device I've connected?
For serial devices I tend to look in /dev/serial/by-id. For disks I use /dev/disk/by-label. If you use ls -l on those they'll show you where they're linked to.
- 111
11
votes
Variable path issue : conda command not found
Lets fix it like this:
Move it out of /root/ with:
sudo mv /root/anaconda3 /home/$USER
Add this to /home/ahmed/.bashrcplease don't use 'sudo' here simple do nano /home/$USER/.bashrc:
# Anaconda3
...
- 36.7k
10
votes
Accepted
Having a list of paths, how can I filter out subdirectories of previously mentioned paths?
AWK
$ awk -F '/' 'oldstr && NR>1{ if($0!~oldstr"/"){print $0;oldstr=$0}};NR == 1{print $0;oldstr=$0}' paths.txt
/proc
/run
/tmp
/home/bytecommander/ramdisk
/var/zomg
/var/zomgkthx
/zomg
/...
- 105k
10
votes
Accepted
Show full path to file in terminal
I found it:
sudo apt-get install realpath
Then:
realpath MY_FILE
- 9,496
Only top scored, non community-wiki answers of a minimum length are eligible