This is handy if you have a repetitive task that requires entering the same command over and over. Rather than typing out the whole command to restart apache each time a change was made you can simply complete the below.
Gracefully restart Apache:
apachectl -k graceful
To save having to type this in each time you wish to do this you can simply run the following command:
alias agrace="apachectl -k graceful"
This will create an ‘alias’ system shortcut for your server, so the next time you type ‘agrace’ your system will know to run the full command ‘apachectl -k graceful’