History Meme

$ history|awk '{a[$2]++} END{for(i in a){printf "%5d\t%s\n",a[i],i}}'|sort -rn|head
  77  whoami
  74  tic
  72  gawk
  70  od
  70  bash
  69  shred
  66  killall
  58  sleep
  55  id
  55  play
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