Quoting

Guide: https://www.grymoire.com/Unix/Quote.html

"globbing"
Double quotes are used to expand (= disable the meaning) of the meta-characters like * or ?,. but expands variable such as $ (Eg $HOME).

'globbing'
Double quotes are used to any characters.

\character
Backslash disables the meaning of the next character to \

`command`
Backquotes are used to consider the string as the command with the same name