Sometimes I come across terminal commands that are handy frequently but take minutes to type in, such as finding the most used commands:
history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n10
But I don’t actually want to type this sh!t EVERY time I want to achieve that goal. Luckily, it’s possible to save command shortcuts. Here is how:
First, open the bash profile:
vi .bash_profile
Second, add alias and save the profile. The command-line writes:
alias {shortcut}="{original command}"
To assign the aforementioned command to, let’s say, chist, I can do:
alias chist="history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n10"
And now I can type chist instead of that whole spaghetti magic. Be sure to avoid any conflicts when assigning the aliases.