Creates a command that runs other commands. Aliases are a handy way to customize your system and to provide shortcuts for common activities. For example, the following alias creates an easy-to-remember name for unpacking a compressed archive:
alias extract='tar zxovf'
Put an alias into the file /etc/bashrc if you
would like the alias to be always accessible to all users on the
alias alone to see the list of
aliases for your account. Use
unalias to remove an
alias ls="ls --color=tty"
Creates an alias for the command
ls to enhance its
format with color. In this example, the alias is also called
ls and the color option is evoked only when the
output is done to a terminal (not to files).
Shows which man (documentation) pages cover the topic specified.
Runs a script, or file containing
bunzip2 stands for big unzip. The command
decompresses files with the extension .bz2. Such
files have been zipped with
utility, which is usually reserved for large files and/or
Combines all listed files in order and displays them on the screen. Useful for showing plain text files; if they are long, they should be displayed with less or more. Also often used to combine files into a single file specified after a > character, as in:
cat a1 a2 a3 > complete_file
cd stands for change directory. For example, if you want ...