Convert Timestamp to Datetime in Linux

Simple command to convert a timestamp to a datetime string in Linux using the date command.

root@xyzzy:~# date -d @1267619929
Wed Mar  3 07:38:49 EST 2010
root@xyzzy:~# date -d @1267619929 +%c
Wed 03 Mar 2010 07:38:49 AM EST

In this example, 1267619929 is the timestamp.