You can search the history of previous entered commands in the Bash shell by simply hitting Ctrl+r keys. Enter a string you want to search for. By hitting Ctrl+r again you can search the history for a given string backwards to the end.
(reverse-i-search)`blog': cd ~/work/dev/blog/
The i stands for incremental.
This is a trick I use often on long lines. Consider this was your previous executed command and you now want to vi the same file:
$ ls ~/this/is/a/very/long/path
You simply want to change the ls to vi. Of course you can hit the Arrow-Up-key and then go the whole way backwards to the left beginning of the line using the Arrow-Left-key. (Or on OS X with bigger steps by holding down the Alt-key and pressing the Arrow-Left-key.) But you can do it in a more simpler way than that. Just press Ctrl+r and search for ls. Now you are instantly at the first position of the line. Hit Esc to exit the search and replace ls at the beginning with vi. Done.
