I have read about 15 chapters of your book (Teach Yourself UNIX in 24 Hours) so far. We are using vi. On the PS1 command, how do I see what is in it so I can add to it and not change what is already there? We are using bash. What I see now is: ctdaywbsdv:/u/gwilki$When I enter ‘echo $PS1’ I get: $ \[\e[0m\]How do I keep the above and add the histcmd option? What...

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