YOU can try the file as a regular python file or even make it a permanent shell command like I have.
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First clone this repo using git clone
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Then go to your home directory and create the ~/bin directory
$ mkdir -p ~/bin
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Copy all the contents of this repo into this directory via terminal using the cp command
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Open the .bashrc file using your favourite text editor and export the path to this bin folder inside it (Don't want to be technical, follow the steps below) open the terminal in home directory
$ nano .bashrc
copy the following command at the end of this fileexport PATH=$PATH":$HOME/bin"
save the file withctrl+O
and exit editor withctrl+x
And that is it. Now even you can teleport across your directories with a simple command