root@astra:/etc# cat shadow
root:!:18056:0:99999:7:::
...
root@astra:/etc# cat shadow | grep root
root::18057:0:99999:7:::
root@astra:/etc# cat shadow
root:!:18056:0:99999:7:::
...
root@astra:/etc# cat shadow | grep root
root::18057:0:99999:7:::
root::18057:0:99999:7:::