alias ALIAS_NAME='COMMAND'

unalias ALIAS_NAME

If you define an alias using the same name as an existing command name, you can run that command unaliased if you precede its name with a backslash.

$ alias ls='ls -l'

$ \ls

• Create an alias.
  

  $ alias list='ls -l'

• Remove an alias.
  

  $ unalias list

• List all aliases.
  

  $ alias