What does cd - exactly do ? ( the change directory command, plus a dash )
I noticed that if I run it in my /home/user folder repeatedly it outputs either /home/user or /home, this changes if I run it from a different folder.
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Answer
cd -
pop the last directory you were from the stack of directory. It’s like hitting “back” on the browser.
Exemple :
you are in /user/alex
you can test that with : pwd that give you /user/alex
then if you do
%cd project1/subfolder %pwd /user/alex/project1/subfolder %cd subsubfolder %pwd /user/alex/project1/subfolder/subsubfolder %cd - pwd /user/alex/project1/subfolder cd - pwd /user/alex
NB : it’s not going back a level upper in the folder hierarchy. it’s going to the previous current folder. ( a level upper is cd .. ).