Two things that improve my bash productivity – stopping the cursor keys inserting characters in vim and history search in bash.
Edit ~/.vimrc or /etc/vim/vimrc (for system wide) and add turn off vi compatibility:
The latter can be improved by editing ~/.inputrc (or /etc/inputrc for everyone). Pressing the up key scrolls through all the commands you’ve typed but by adding:
You can type the first letter or two and get the command you need, so if you typed “mysql -u root -p” last Tuesday but can’t remember the options, typing “my” and pressing the up key will find it.