[sireat]

I live by command line history and timestamps.

I wish there was even better way to preserve the context of what you were doing at the time (env variables, current path at the time etc).

[lolive]

Developing your own functions. A VERY useful trick to make your usual command line chains to be stored in a single [hopefully meaningful] command.

PS: be sure to always have a -—help option that describes the function, just as you would do when programming