Plurrrr

Readline is the single most useful thing in everything

Today I added the following to ~/.inputrc:

"\e[A": history-search-backward
"\e[B": history-search-forward

See The single most useful thing in bash why this is handy, and why this is actually a Readline functionality.

• command line

How Bash completion works

In the evening I read a good article on How Bash completion works. A recommended read.

• shell