$ history | awk {'print $2'} | sort | uniq -c | sort -k1 -rn | head
975 cd
755 mvn
623 svn
467 ls
320 find
236 less
209 rm
195 curl
189 java
115 vi
$ history | awk {'print $2'} | sort | uniq -c | sort -k1 -rn | head
975 cd
755 mvn
623 svn
467 ls
320 find
236 less
209 rm
195 curl
189 java
115 vi