Is there any way to find out top 10 most used commands in history? Here top 10 means commands which I have used most of the time i.e. the commands whose used count is more than others.
2 Answers
One line:
history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n10
Example output:
1 211 21.1% ls
2 189 18.9% sudo
3 58 5.8% man
4 52 5.2% cd
5 43 4.3% ping
6 40 4% apropos
7 34 3.4% less
8 22 2.2% cat
9 18 1.8% which
10 18 1.8% aspell
This site provides a little more information.
answered Oct 15, 2015 at 10:59
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3Hey, I wanted to apologize for my needlessly aggressive comment on your answer here. Upon reflection, I realized that the question was not very clear and it could indeed have been that the OP was attempting to do it as a different user. I still don't think they would have gotten those errors, but there was no reason to come down so hard on you. My apologies.– terdonOct 15, 2015 at 11:56
I have a little script myself to check what are the top N commands I have been using lately:
mylast () {
re='^[0-9]+$'
if ! [[ $1 =~ $re ]] ; then
echo "error: $1 not a number" >&2
else
history | awk '{a[$2]++} END {for (i in a) print a[i], i}' | sort -rn | head -n $1
fi
}
So by saying mylast 10 it shows the top 10.
This is done by going through the history and storing the 2nd field into in awk, so that the count can be tracked through an array.
Sample output:
$ mylast 5
248 git
107 python
93 grep
71 awk
52 less
history | sortcan provide much of this, so you should narrow this down a little bit.