Linux Crash Course - nano, learn linux TV
https://www.youtube.com/watch?v=DLeATFgGM-A
60 Linux Commands you NEED to know (in 10 minutes)
https://www.youtube.com/watch?v=gd7BXuUQ91w
Bash Reference Manual
https://www.gnu.org/software/bash/manual/html_node/index.html#SEC_Contents
The 40 Simple Yet Effective Linux Shell Script Examples
https://www.ubuntupit.com/simple-yet-effective-linux-shell-script-examples/
Bash cheat sheet: Top 25 commands and creating custom commands, Educative
https://www.educative.io/blog/bash-shell-command-cheat-sheet
Tech With Tim Linux Beginner Series, Linode, 1 / 14
https://www.youtube.com/playlist?list=PLTnRtjQN5iea6LlzIpcX5M4Av4JBPEiHm
az linux commands
https://www.tecmint.com/linux-commands-cheat-sheet/
30 top linux commands, bytescout
https://bytescout.com/blog/most-used-linux-commands.html
34 Linux Basic Commands, hostinger tutorials
https://www.hostinger.com/tutorials/linux-commands
50 Most Frequently Used UNIX / Linux Commands
https://www.thegeekstuff.com/2010/11/50-linux-commands/
File permissions, cambridge university