How to have autocomplete in terminal?

[Kresimir]

Personally, I would love to be able to replace Bash with Dash as /bin/sh, but unfortunately, that is not feasible on Arch Linux, because of this:

A short rant about #!/bin/sh

I’m really annoyed by it. If you pick at random a dozen or so shell scripts in your /usr/bin directory that start with the interpreter designation of #!/bin/sh you will find at least a few of them that use Bash-specific syntax (“bashisms”). And often, it is something as stupid as using [[ "$string1" = "$string2" ]] in situations where a perfectly valid POSIX command like [ "$string1" = "$string2" ] would suffice. People who do that deserve to be devoured by a giant frog-monster. On a typ…

That’s the single biggest flaw of Arch Linux as a distro, in my opinion.