I've got a 100k HISTSIZE that I love finding things by ^R reverse searches. Here are my top 20 root and main non root user.
root:~# awk '{print $1};' .bash_history | sort | uniq -c | sort -nr | head -n 20 245 vi 168 ll 91 cd 88 /etc/init.d/nginx 83 /etc/init.d/php5-fpm 79 rm 63 apt-get 47 mount 46 less 27 top 22 umount 22 apt-cache 21 mv 18 virsh 18 chown 17 /etc/init.d/nfs-kernel-server 14 tail 12 mdadm 10 grep 10 cp Non root 1935 vi 1077 cvs 1044 cd 862 ssh 664 ./plc 523 make 520 ll 346 php 186 screen 170 ./projects 146 grep 123 su 121 ./amazon_release 105 rm 83 uptime 68 cp 64 ab 63 rsync 63 mysql 62 scp Adam /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */