동작중인 프로세의 File Descriptor 확인 방법

1) File Descriptor를 확인 할 프로세스의  PID 확인

ps -ef | grep [Process Name] UID        PID  PPID   C STIME TTY          TIME      CMD root     20298  20297  0  13:37   pts/1        00:00:14  [프로세스명]

2) /proc를 통한 해당 프로세스 File Descriptor 확인

ls -al /proc/[PID]/fd total 9 dr-x------  2 root root  0 Jun 17 13:37 ./ dr-xr-xr-x  3 root root  0 Jun 17 13:37 ../ lrwx------  1 root root 64 Jun 17 13:37 0 -> /dev/fb0 lrwx------  1 root root 64 Jun 17 13:37 1 -> /dev/fb1 lrwx------  1 root root 64 Jun 17 13:37 2 -> /dev/pts/1 lrwx------  1 root root 64 Jun 17 13:37 3 -> socket:[88] lrwx------  1 root root 64 Jun 17 13:37 4 -> socket:[80] lrwx------  1 root root 64 Jun 17 13:37 5 -> socket:[8080] lrwx------  1 root root 64 Jun 17 13:37 6 -> socket:[9988] lrwx------  1 root root 64 Jun 17 13:37 7 -> socket:[9997] lrwx------  1 root root 64 Jun 17 13:37 8 -> socket:[9999]