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a shell builtin command in watch?

a shell builtin command in watch?

a shell builtin command in watch?


because I can't find any command replacement to the built-in 'history' command, I'd like to ask you if can use watch + history to continuously view history changes with date:

root@test:~# history|tail -2
598 17/11/15 14:23:48 :: HISTTIMEFORMAT="%d/%m/%y %T :: "
599 17/11/15 14:23:54 :: history|tail -2

what I tried to do is:

# watch -t -d=cumulative history

but it fails with error:

sh: 1: history: not found

anyway to use history with watch comamnd?

RE: a shell builtin command in watch?

If you want to just get commands that end up in the history, with time stamp, as they happen, this should get you close...


tail -f ~/.sh_history | (unset IFS; while read LINE; do print "$(date '+%Y%m%d:%H%M%S'): ${LINE}"; done) 

Output looks like this...


20151117:110700: ls -la
20151117:110941: man history
20151117:110948: ls -la
20151117:111013: find . -name '*.sql' -ls 

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