Linux进程文件路径在哪里才能找得到呢，有时会让Linux系统管理员费些心思，这里小编说一个简单的案例，相信会让不少管理员有所收获，帮助轻松获得想要的Linux进程文件路径，完成指定任务。
进入/proc目录
ps查看进程
root 2227 5.6 1.4 328704 27252 pts/1 Rl+ 14:16 0:01 /usr/bin/python ./run.py
用ll命令： ll 进程号
ll /proc/2227
如下显示一个示例：
[root@aliyun proc]# ll 2227
total 0
dr-xr-xr-x 2 root root 0 Feb 16 14:19 attr
-rw-r–r– 1 root root 0 Feb 16 14:19 autogroup
-r——– 1 root root 0 Feb 16 14:19 auxv
-r–r–r– 1 root root 0 Feb 16 14:19 cgroup
–w——- 1 root root 0 Feb 16 14:19 clear_refs
-r–r–r– 1 root root 0 Feb 16 14:16 cmdline
-rw-r–r– 1 root root 0 Feb 16 14:19 comm
-rw-r–r– 1 root root 0 Feb 16 14:19 coredump_filter
-r–r–r– 1 root root 0 Feb 16 14:19 cpuset
lrwxrwxrwx 1 root root 0 Feb 16 14:19 cwd -> /vipkid/lianxi
-r——– 1 root root 0 Feb 16 14:19 environ
lrwxrwxrwx 1 root root 0 Feb 16 14:17 exe -> /usr/bin/python2.7
dr-x—— 2 root root 0 Feb 16 14:16 fd
dr-x—— 2 root root 0 Feb 16 14:19 fdinfo
-rw-r–r– 1 root root 0 Feb 16 14:19 gid_map
-r——– 1 root root 0 Feb 16 14:16 io
-r–r–r– 1 root root 0 Feb 16 14:19 limits
-rw-r–r– 1 root root 0 Feb 16 14:19 loginuid
-r–r–r– 1 root root 0 Feb 16 14:19 maps
-rw——- 1 root root 0 Feb 16 14:19 mem
-r–r–r– 1 root root 0 Feb 16 14:19 mountinfo
-r–r–r– 1 root root 0 Feb 16 14:19 mounts
-r——– 1 root root 0 Feb 16 14:19 mountstats
dr-xr-xr-x 6 root root 0 Feb 16 14:19 net
dr-x–x–x 2 root root 0 Feb 16 14:19 ns
-r–r–r– 1 root root 0 Feb 16 14:19 numa_maps
-rw-r–r– 1 root root 0 Feb 16 14:19 oom_adj
-r–r–r– 1 root root 0 Feb 16 14:19 oom_score
-rw-r–r– 1 root root 0 Feb 16 14:19 oom_score_adj
-r–r–r– 1 root root 0 Feb 16 14:19 pagemap
-r–r–r– 1 root root 0 Feb 16 14:19 personality
-rw-r–r– 1 root root 0 Feb 16 14:19 projid_map
lrwxrwxrwx 1 root root 0 Feb 16 14:19 root -> /
-rw-r–r– 1 root root 0 Feb 16 14:19 sched
-r–r–r– 1 root root 0 Feb 16 14:19 sessionid
-r–r–r– 1 root root 0 Feb 16 14:16 smaps
-r–r–r– 1 root root 0 Feb 16 14:19 stack
-r–r–r– 1 root root 0 Feb 16 14:16 stat
-r–r–r– 1 root root 0 Feb 16 14:19 statm
-r–r–r– 1 root root 0 Feb 16 14:16 status
-r–r–r– 1 root root 0 Feb 16 14:19 syscall
dr-xr-xr-x 4 root root 0 Feb 16 14:19 task
-rw-r–r– 1 root root 0 Feb 16 14:19 uid_map
-r–r–r– 1 root root 0 Feb 16 14:19 wchan
/proc文件系统下的 进程号目录 下面的文件镜像了进程的当前运行信息，
从中可以看到：
cwd符号链接的就是进程2227的运行目录；
exe符号连接就是执行程序的绝对路径；
cmdline就是程序运行时输入的命令行命令；本例为：./run.py
cpu记录了进程可能运行在其上的cpu；显示虚拟的cpu信息
environ记录了进程运行时的环境变量
fd目录下是进程打开或使用的文件的符号连接
…
通过cwd直接进入进程运行目录，通过查看相关信息就可以定位此目录对应那个端口号，以及定位是那个应用才使用此服务程序。这样就获得了Linux进程文件路径了。
