Simple Perl script to convert unix epoch times to text.

ctime

#!/usr/bin/perl -w
#
# Convert unix times (on command line or one-per-line via stdin)
# to human readable times in local timezone.
#
if (@ARGV) {
    print join("\n", map { scalar localtime($_); } @ARGV), "\n";
} else {
    while (<STDIN>) {
        chomp;
        print scalar localtime $_, "\n"; 
    }
}