Hi,

I can use history command in unix to view my last 50 commands. But how can I run the previous commands easily? Can history command help?

Firebird

!! : to run the previous command
^P : move up through history list, one command at a time. (Up arrow key)
^N : move down (or Down arrow key).
!n : run nth command in history list. where n is a number from your history list.
!n:p : only preview command number n (will not execute the command).
!string : Run most recent command starting with characters in string.

Or if you are using ksh, use the 'vi' keys to scroll through.edit your previsou commands.
Hit Escape, then 'k' to scroll back. 'j' to move forward. 'l' to move right, 'h' for left, etc. Almost all the normal vi function keys are available...