history|awk '{print $2}'|awk 'BEGIN {FS="|"} {print $1}'|sort|uniq -c|sort -nr | head -n 50

gistfile1.txt

Don-Brownings-MacBook-Pro:node donwb$ history|awk '{print $2}'|awk 'BEGIN {FS="|"} {print $1}'|sort|uniq -c|sort -nr | head -n 50
 166 node
  81 git
  69 ls
  68 jitsu
  34 cd
  19 pwd
  14 npm
  10 vi
   6 ssh
   6 curl
   4 mate
   3 rm
   3 mkdir
   3 cp
   2 sudo
   2 subl
   2 jistu
   1 telnet
   1 mv
   1 index.html
   1 history
   1 [email protected]:donwb/DownWithTables.git
   1 exit
   1 eit
   1 chrome