shell

The geeks out there who use commandline on a popular set of operating systems (linux) may or may not know about bash_completion. bash_completion is awesome, it adds more tabbing to your typing. You type ssh <tab> <tab> and it starts suggesting what you might want to type, like hosts, or switches. It autocompletes when it can, and it makes life very easy. To the non-geek this translates into very efficient commandlines, and that is why geeks dig the commandline. I always thought bash_completion was awesome, but lacking a critical feature.

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