Using bash history to get a previous command, copy it and then 'run' it but with the command commented

Question

Just a question to improve my bash skills. I always do this:

$ history | grep some_long_command

...
...
123 some_long_command1.........
124 some_l         


        

Answer 1

Put

alias r='fc -s'

in your .bashrc (home dir) then you can just type in

r 

at the command prompt and you will execute a copy of the last command (same params) that is in your history. just hit up arrow to see what you have executed if you feel the need.