Grepping the history = save time and energy

It happens to me almost everyday that I type a long command (combination of commands) and then after executing million other commands I need the long old command back again. What I used to do is hit up and down arrow keys on my key board and keep staring on the screen so that I don't miss the long command. This process is usually very time consuming and frustrating. Today all of a sudden I thought of grepping the history command and aahaa!!!!


simply grep the history command as under:

# history | grep perl
235 perl -e "s/rakesh/root/g;" -pi $(find . -type f)
267 perl -e "s/rakesh/root/g;" -pi $(find . -type f)

then you can just type !267 to execute the command or just copy/paste it.

try it and you will save a lot of time for sure.

Thanks

--Rakesh