a quick Q: how to back to the head in terminal

[lina <lina.lastname@gmail.com>]

Hi,

when I use up arrow to check history, and then came to the commend I wanted,

suppose it's a long command I typed before,

now I want my cursor be back to head to make a very minor modification, 

are there some quick way to do it, not by pressing the left arrow.


Thanks,
-- 
Best Regards,

lina