#!/bin/bash
s="123 1 2 3
1 2 3 45
14 2 3 4
123 a2
hello 123 my 1 name 2 is 3"
grep -E '\<[0-9]+\>.*\<[0-9]+\>.*\<[0-9]+\>.*\<[0-9]+\>' <<< "$s"
IyEvYmluL2Jhc2gKcz0iMTIzIDEgIDIgMwoxIDIgMyA0NQoxNCAyIDMgNAoxMjMgYTIKaGVsbG8gMTIzIG15IDEgbmFtZSAyIGlzIDMiIAoKZ3JlcCAtRSAnXDxbMC05XStcPi4qXDxbMC05XStcPi4qXDxbMC05XStcPi4qXDxbMC05XStcPicgPDw8ICIkcyIKCg==