mats@matslw25:/home/matsh$ history | awk ‘{a[$2]++}END{for(i in a){print a[i] " " i}}’ | sort -rn 102 cd 56 ls 50 exit 49 more 42 ll 33 mysql 22 ssh 17 ps 14 svn 12 sudo 12 ant 11 rm 9 kill 8 gedit 6 which 6 man 4 touch 4 mv 4 less 4 grep 4