unix command to see the last run command on command line

Question

what is the command to see the previously executed command that was run on the command line ?

Answer 1

use the history command.

history -1 will display only the last command. Otherwise, history will list the last 16 commands (for plain ksh, but this may differ with other korn-compatible shells).

You can also use the fc builtin command if you are using plain ksh (command options are described in the man page).

Answer 2

According to this post, you can use the Up Arrow key once you add the following lines to the bottom of your .kshrc file in your $HOME directory:

set -o emacs
alias __A=$(print '\0020') # ^P = up = previous command
alias __B=$(print '\0016') # ^N = down = next command
alias __C=$(print '\0006') # ^F = right = forward a character
alias __D=$(print '\0002') # ^B = left = back a character
alias __H=$(print '\0001') # ^A = home = beginning of line

Answer 3

It depends on your shell. If you want to run the last command, in bash for example, you can type !!.

See this page for more info.

EDIT

Oh well, now I noticed that you had tagged your post ksh. Sorry about that. I'll leave this answer here anyway. Maybe it helps someone someday :)