Boring même

I am only doing this because Erich horrified me with a two-awk pipeline. So one system for each invocation of awk:

% print -l -- ${(o)history%%[ |]*} | uniq -c | sort -nr | head -n 10
    271 cd
    233 sudo
    221 rm
    215 more
    185 ls
    163 dict
    151 apt-cache
    128 vi
    110 tla
    108 grep

% print -l -- ${(o)history%%[ |]*} | uniq -c | sort -nr | head -n 10
    124 sudo
    112 cd
     97 ls
     73 zomg
     33 man
     32 apt-cache
     26 rmadison
     22 grep
     21 vi
     18 tla