UNIX for Dummies Questions & Answers

Assume i have typed 4 commands in the past like

Code:

vi `ls -t |head -n 1`
tail -2 test.txt
ls -lrt | grep "/etc/profile.d"
pwd

Now if i type r p it should execute the command "pwd" likewise r t should execute tail -2 test.txt.

Note: esc k and using up arrow and down arrow will get this work done. But i need to fix it with alias. Thanks!

Moderator's Comments:

Use code tags, thanks.

What do you mean "I need to fix it with alias"? Give an example of what you are trying to achieve.

I always shy away from this because of the human error risk or overlapping sessions.

Imagine my 'delight' when I once managed to shutdown a production server in the middle of the day and you will know why I always bring up a command rather than using the r shortcut.


Just my thoughts,
Robin

You haven't told us which system and which shell you use, but from your use of the r alias i deduce it is an AIX system. r is an alias itself for:

Code:

fc -e -

I agree with rbatte1, it is a dangerous thing to rely on something spurious like the command history. If you want to repeatedly execute a (group of) command(s) then put them into a script, not an alias.

I hope this helps.

bakunin