I need a shell command or script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
ts2date 1267619929
and
echo 1267619929 | ts2date
Both commands should output "Wed Mar 3 13:38:49 2010".
On later versions of common Linux distributions you can use:
date -d @1267619929