Sometimes when running a shell command with some arguments, you might realise that you need to run another command but with the same arguments. If the argument is a long path or such, you really don’t want to have to type it in again. A simple way to run a new command with the previous arguments is:

command arg1 arg2
newCommand !*
newCommand arg1 arg2

For example:

echo A B C D
echo !*

or if you want to use only the last argument:

command arg1
newCommand !$
newCommand arg1

For example:

vim ~/.bash_profile
source !$

or if you want to repeat the last command:

command arg1 arg2 arg3
command arg1 arg2 arg3

It turns out there is a slew of other variations to this syntax as I found out in this Stackoverflow answer:

!^      first argument
!$      last argument
!*      all arguments
!:2     second argument

!:2-3   second to third arguments
!:2-$   second to last arguments
!:2*    second to last arguments
!:2-    second to next to last arguments

!:0     the command
!!      repeat the previous line

You could also use the history command in conjunction:

command !history_line_number:1-indexed-argument-number

For example:

$ history
   97  rm ~/bin/st
   98  ln -s /Applications/ ~/bin/
$ ll !98:3
ll ~/bin/