问题
With "lsof" i can check the list of open files is there any command or any other way by which i can detect where the files the files are being accessed. The output of "lsof" command is as follows:-
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
init 1 ??? cwd ??? ??? ??? ??? /proc/1/cwd (readlink: Permission denied)
init 1 ??? exe ??? ??? ??? ??? /proc/1/exe (readlink: Permission denied)
init 1 ??? root ??? ??? ??? ??? /proc/1/root (readlink: Permission denied)
init 1 ??? FDS /proc/1/fd/ (opendir: Permission denied)
init 2 ??? cwd ??? ??? ??? ??? /proc/2/cwd (readlink: Permission denied)
init 2 ??? exe ??? ??? ??? ??? /proc/2/exe (readlink: Permission denied)
init 2 ??? root ??? ??? ??? ??? /proc/2/root (readlink: Permission denied)
init 2 ??? FDS /proc/2/fd/ (opendir: Permission denied)
init 3 ??? cwd ??? ??? ??? ??? /proc/3/cwd (readlink: Permission denied)
init 3 ??? exe ??? ??? ??? ??? /proc/3/exe (readlink: Permission denied)
init 3 ??? root ??? ??? ??? ??? /proc/3/root (readlink: Permission denied)
init 3 ??? FDS /proc/3/fd/ (opendir: Permission denied)
init 4 ??? cwd ??? ??? ??? ??? /proc/4/cwd (readlink: Permission denied)
init 4 ??? exe ??? ??? ??? ??? /proc/4/exe (readlink: Permission denied)
init 4 ??? root ??? ??? ??? ??? /proc/4/root (readlink: Permission denied)
init 4 ??? FDS /proc/4/fd/ (opendir: Permission denied)
init 5 ??? cwd ??? ??? ??? ??? /proc/5/cwd (readlink: Permission denied)
init 5 ??? exe ??? ??? ??? ??? /proc/5/exe (readlink: Permission denied)
init 5 ??? root ??? ??? ??? ??? /proc/5/root (readlink: Permission denied)
init 5 ??? FDS /proc/5/fd/ (opendir: Permission denied)
init 6 ??? cwd ??? ??? ??? ??? /proc/6/cwd (readlink: Permission denied)
init 6 ??? exe ??? ??? ??? ??? /proc/6/exe (readlink: Permission denied)
init 6 ??? root ??? ??? ??? ??? /proc/6/root (readlink: Permission denied)
init 6 ??? FDS /proc/6/fd/ (opendir: Permission denied)
init 7 ??? cwd ??? ??? ??? ??? /proc/7/cwd (readlink: Permission denied)
init 7 ??? exe ??? ??? ??? ??? /proc/7/exe (readlink: Permission denied)
init 7 ??? root ??? ??? ??? ??? /proc/7/root (readlink: Permission denied)
init 7 ??? FDS /proc/7/fd/ (opendir: Permission denied)
init 8 ??? cwd ??? ??? ??? ??? /proc/8/cwd (readlink: Permission denied)
init 8 ??? exe ??? ??? ??? ??? /proc/8/exe (readlink: Permission denied)
init 8 ??? root ??? ??? ??? ??? /proc/8/root (readlink: Permission denied)
init 8 ??? FDS /proc/8/fd/ (opendir: Permission denied)
init 9 ??? cwd ??? ??? ??? ??? /proc/9/cwd (readlink: Permission denied)
init 9 ??? exe ??? ??? ??? ??? /proc/9/exe (readlink: Permission denied)
init 9 ??? root ??? ??? ??? ??? /proc/9/root (readlink: Permission denied)
init 9 ??? FDS /proc/9/fd/ (opendir: Permission denied)
init 10 ??? cwd ??? ??? ??? ??? /proc/10/cwd (readlink: Permission denied)
For each pid i am getting three locations like for pid "9" i am getting the following locations:- "/proc/1/cwd (readlink: Permission denied)","/proc/9/exe","/proc/9/fd/ (opendir: Permission denied)"
Now how can i know which file is exactly being used? I am a newbie so don't know enough.Any suggestion would be a great help from your side.
回答1:
Try fuser. http://linux.die.net/man/1/fuser It is used to identify processes using files or sockets.
来源：https://stackoverflow.com/questions/12347201/how-to-know-the-exact-location-where-the-file-is-being-accessed-in-android-ndk