How to return to the previous directory with the Bash cd command

Note that I learned how to use the convenient cd command

You can use cd - to return to the previous directory.

$ pwd
/home/someuser
$ cd somewhere/to/work && pwd
/home/someuser/somewhere/to/work
$ cd -
/home/someuser
$ cd -
/home/someuser/somewhere/to/work

Useful when returning to the root directory of the original project after moving directories with npm scripts or CI/CD

$ cd path/to/child && [Do something] && cd -

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