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If you use HISTTIMEFORMAT environment e.g. timestamping typed commands, $(echo "1 2 $HISTTIMEFORMAT" | wc -w)
gives the number of columns that containing non-command parts per lines.
It should universify this command.
There are 3 alternatives - vote for the best!
Plot your most used commands with gnuplot.
This alternative cleans HISTTIMEFORMAT environment variable and calls gnuplot just after /tmp/cmds is closed, to avoid some errors.
If you can do better, submit your command here.
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