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OpenStars , 10 months ago :wq will save and then exit, while :x will save only if the file has been modified and then exit, and then there's ZZ that does the same as :x, plus there are probably others:-)
:wq will save and then exit, while :x will save only if the file has been modified and then exit, and then there's ZZ that does the same as :x, plus there are probably others:-)