[How To] Retrive Last Entered Command On IBM AIX

While once can directly view the last entered commands by pressing Up/Down arrow keys, IBM AIX does not support this.

There is, however, a quirky solution to this. One can type 'r' to run the immediately previous command.

$ r #runs the immediately previous command

Other options include

$ r -1 # to display the second last command
$ r -2 # to display the third last command

..and so on.

Additionally, we can view all the recently entered commands by just entering history command as below:

$ history #displays all the previously  entered commands

If you wish to know how to tweak the history command to customize the number of commands it stores, you can click here.