$ comment -- working on project 497 $ history ... 9957 May/03 - 12:10:11 comment -- working on project 497 9958 May/03 - 12:11:08 history
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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comment() { :; }
: (colon) does nothing and returns true. Alternatively, just do# This is a comment
history | tail -n 5 | sed 's/^comment/#/' > newshell.sh
... can't do that if I'm only using 'echo'...# this is a comment
won't get written to $HISTFILE. You can see it in your current session, but it doesn't persist after you log out.