Curious to see who's logged on with you? Run this shell script to identify your fellow users.

see.sh

#!/bin/bash

passwdPattern="(\w+ ){1,3}\w+"
finalCmds=false

while getopts u arg; do
    case $arg in
        u)
            passwdPattern="^\w+.*(\w+ ){1,3}\w+"
            finalCmds=true
            ;;
    esac
done

names=$(users | xargs getent passwd | grep -Po "$passwdPattern" | sort | uniq)
if $finalCmds; then
    echo "$names" | cut -d ':' -f 1,5 | awk -F':' '{printf "%10s: %-20s\n", $1, $2 }'
else
    echo "$names"
fi