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renan@gothic:~$ history|awk '{print $2}'|awk 'BEGIN {FS="|"} {print $1}'|sort|uniq -c|sort -rn|head -20
    101 cd
     89 ls
     45 mv
     27 l
     21 rm
     20 vi
     17 sudo
     13 ll
      8 strings
      7 zsnes
      7 dmesg
      6 telnet
      6 su
      6 less
      6 clear
      5 kooldock
      5 killall
      5 ftp
      5 df
      4 xpdf