Learning vim early in my programming career has been far more beneficial to me than learning any individual IDE purely for the supplementary skills it teaches.

Learning vim early in my programming career has been far more beneficial to me than learning any individual IDE purely for the supplementary skills it teaches. Becoming comfortable in a shell, transfer of skills to other command line utilities like sed, grep, etc, and being confident in being able to work in almost any remote environment are now skills I consider indispensable to development as a whole.