Specify which command would you use (and how) for each of the following scenarios

Remove a directory with files
- Display the content of a file
- Provides access to the file /tmp/x for everyone
- Change working directory to user home directory
- Replace every occurrence of the word "good" with "great" in the file /tmp/y

Difficulty: unrated

Source: bregman-arie/devops-exercises by Arie Bregman

Answer

rm -rf dir
- cat or less
- chmod 777 /tmp/x
- cd ~
- sed -i s/good/great/g /tmp/y