!!
Repeat Previous Command!-1
Repeat Previous Command!-2
Repeat 2nd Previous Command!ps
Execute Previous Command STARTING WITH ps!^
First Argument From Previous Command!:2
2nd Argument From Previous Command!$
Last Argument From Previous Command!!:$
Last Argument From Previous Command!-2:$
Last Argument From 2nd Previous Commands
ctrl+x ctrl+e
Edit the current command in editorctrl+k
Kill to end of linectrl+u
Clear linectrl+y
Yank it back