nginx.service - A high performance web server and a reverse proxy server
Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2019-07-08 06:56:58 IST; 30min ago
 Docs: man:nginx(8)
Process: 425 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=203/EXEC)

Jul 08 06:56:58 IAQM-CSIO systemd[1]: Starting A high performance web server and a reverse proxy server...
Jul 08 06:56:58 IAQM-CSIO systemd[425]: nginx.service: Failed to execute command: No such file or directory
Jul 08 06:56:58 IAQM-CSIO systemd[425]: nginx.service: Failed at step EXEC spawning /usr/sbin/nginx: No such file or directory
Jul 08 06:56:58 IAQM-CSIO systemd[1]: nginx.service: Control process exited, code=exited, status=203/EXEC
Jul 08 06:56:58 IAQM-CSIO systemd[1]: nginx.service: Failed with result 'exit-code'.
Jul 08 06:56:58 IAQM-CSIO systemd[1]: Failed to start A high performance web server and a reverse proxy server.
Jul 08 07:21:42 IAQM-CSIO systemd[1]: nginx.service: Unit cannot be reloaded because it is inactive.