Easily print unix epoch timestamp in human-readable form on the command line

from_unixtime.sh

# take a Unix timestamp and print it in human-readable form;
# works both on Linux and OS X.
# 
# copy this to your .bash_profile, then you can use it as:
# from_unixtime 1460558700 
# returns: Wed Apr 13 16:45:00 CEST 2016

from_unixtime() {
    thedate="$1"
    thedate=${thedate:0:10}
        # the command above is a simple method to remove milliseconds.
        # it works until 2286-11-20 17:46:40, after which unix timestamps
        # will have 11 digits.
    if [[ "$(uname)" == "Darwin" ]]; then
        date -r $thedate
    else
        date -d @$thedate
    fi
}