Bash mkdir and subfolders [duplicate]

Answer 1

To create multiple sub-folders

mkdir -p parentfolder/{subfolder1,subfolder2,subfolder3}

Answer 2

You can:

mkdir -p folder/subfolder

The -p flag causes any parent directories to be created if necessary.

Answer 3

FWIW,

Poor mans security folder (to protect a public shared folder from little prying eyes ;) )

mkdir -p {0..9}/{0..9}/{0..9}/{0..9}

Now you can put your files in a pin numbered folder. Not exactly waterproof, but it's a barrier for the youngest.