為什麼“clpasswd”不知道“-R”？

有一個符號連結：

2:root@SERVER:/root # ls -la /usr/bin/passwd
lrwxrwxrwx    1 root     system           39 Feb  3 2014  /usr/bin/passwd -> /usr/es/sbin/cluster/utilities/clpasswd
2:root@SERVER:/root #

還有原始的二進製文件：

2:root@SERVER:/root # ls -la /usr/es/sbin/cluster/utilities/clpasswd
-rwsr-xr-x    1 root     system       413726 Aug 29 2013  /usr/es/sbin/cluster/utilities/clpasswd
2:root@SERVER:/root # 

符號連結知道“-R”：

2:root@SERVER:/root # /usr/bin/passwd -R files root
Changing password for "root"
root's New password:
Terminating from signal
2:root@SERVER:/root # 

clpasswd，原始二進製文件不知道“-R”

2:root@SERVER:/root # /usr/es/sbin/cluster/utilities/clpasswd -R files root
/usr/es/sbin/cluster/utilities/clpasswd: illegal option -- R


Usage: clpasswd cluster_user [ -g ResourceGroup ]
Where:
   -g ResourceGroup - Update on participating nodes only
                      Otherwise all cluster nodes receive update

2:root@SERVER:/root # 

當符號連結知道時，為什麼原始二進製文件不知道“-R”選項？

我們也嘗試了硬連結，但沒有奏效。

二進製文件檢查其文件名。

0:root@SERVER:/root # ln -s /usr/es/sbin/cluster/utilities/clpasswd /tmp/passwd
0:root@SERVER:/root # /tmp/passwd -R files root
Changing password for "root"
root's New password:
Terminating from signal
0:root@SERVER:/root # mv /tmp/passwd /tmp/clpasswd
0:root@SERVER:/root # /tmp/clpasswd -R files root
/tmp/clpasswd: illegal option -- R


Usage: clpasswd cluster_user [ -g ResourceGroup ]
Where:
   -g ResourceGroup - Update on participating nodes only
                      Otherwise all cluster nodes receive update

0:root@SERVER:/root #  

引用自：https://unix.stackexchange.com/questions/169693