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"cd" is short for "Change Directory," but feels more like "Conjure Destination." BTW, typing `cd ..` repeatedly is like spelunking in the dark depths of your filesystem, hoping to find your way back to the surface. `cd -` always take back you to previous working directory But fear not, typing `cd` will always take you back to HOME sweet home. See cyberciti.biz/faq/how-to-chang for more examples including CDPATH and other vars to increase your productivity.

Hans van Schoot

@nixCraft interesting, I've always considered "cd .." as climbing out of the depths of folders within folders, back to the top of the file system!