Brace Expansion: Twelve Folders in One Line

Braces turn one word into many before a command runs, from a list such as {beach,city} or a range such as {01..12}, so mkdir makes a folder for every month in one line and cp file{,.bak} makes a quick backup.

Updated

Cheat sheet for the lesson Brace Expansion: Twelve Folders in One Line: Braces turn one word into many before a command runs, from a list such as {beach,city} or a range such as {01..12}, so mkdir makes a folder for every month in one line and cp file{,.bak} makes a quick backup.
Category
Bash
Level
Apprentice
Tags
brace-expansion, linux, mkdir, unix, wildcard