ls -al /proc/[pid]/exe
# 例如:
[root@localhost ~]# ls -al /proc/9109/exe
lrwxrwxrwx. 1 ibaboss ibaboss 0 Dec 19 18:35 /proc/9109/exe -> /usr/java/jdk1.8.0_65/bin/java
# 例如:
[root@localhost ~]# ls -al /proc/9109/exe
lrwxrwxrwx. 1 ibaboss ibaboss 0 Dec 19 18:35 /proc/9109/exe -> /usr/java/jdk1.8.0_65/bin/java