List files in the directory
 Usage: ls [OPTION]... [FILE]...
 Options:
    -a    do not ignore entries starting with .

 Concatenate FILE to output.
 Usage: cat [OPTION]... [FILE]...

 If DIR is a directory: change current working directory to DIR;
 if DIR is a link: open URL in a new tab.
 Usage: cd [DIR]

 Show uname info from this.data.uname
 Usage: uname

 Show whoami info from this.data.whoami
 Usage: whoami

 Show GNU bash help
 Usage: help

 Show full pathname of the current working directory
 Usage: pwd

 Print the STRING passed as argument
 Usage: echo [STRING]

 Exit console (deactivate keys callbacks)
 Usage: exit