yes you are right, there were aliases…
for the cmd:
==> /var/log/nginx/error.log <==
2022/11/03 13:38:03 [notice] 1#1: OS: Linux 5.15.0-52-generic
2022/11/03 13:38:03 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1048576:1048576
2022/11/03 13:38:03 [notice] 1#1: start worker processes
2022/11/03 13:38:03 [notice] 1#1: start worker process 23
2022/11/03 13:38:03 [notice] 1#1: start cache manager process 24
2022/11/03 13:38:03 [notice] 1#1: start cache loader process 25
2022/11/03 13:39:03 [notice] 25#25: http file cache: /var/cache/nginx 0.000M, bsize: 4096
2022/11/03 13:39:03 [notice] 1#1: signal 17 (SIGCHLD) received from 25
2022/11/03 13:39:03 [notice] 1#1: cache loader process 25 exited with code 0
2022/11/03 13:39:03 [notice] 1#1: signal 29 (SIGIO) received
==> /var/log/nginx/mm.access.log <==
==> /var/log/nginx/mm.error.log <==
==> /var/log/nginx/access.log <==
172.22.0.1 - - [03/Nov/2022:13:58:15 +0000] "GET / HTTP/1.1" 301 169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0" "77.130.249.205"
172.22.0.1 - - [03/Nov/2022:13:58:15 +0000] "GET / HTTP/1.1" 301 169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0" "77.130.249.205"
172.22.0.1 - - [03/Nov/2022:13:58:15 +0000] "GET / HTTP/1.1" 301 169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0" "77.130.249.205"
172.22.0.1 - - [03/Nov/2022:13:58:15 +0000] "GET / HTTP/1.1" 301 169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0" "77.130.249.205"
172.22.0.1 - - [03/Nov/2022:13:58:15 +0000] "GET / HTTP/1.1" 301 169 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0" "77.130.249.205"
etc...