1、创建软连接时报错

[root@nfs01 ~]#  ln -s /application/sersync/bin/sersync /sbin/
ln: failed to create symbolic link ‘/sbin/sersync’: File exists

[root@nfs01 ~]# ll /sbin/sersync
lrwxrwxrwx 1 root root 57 May 25 14:37 /sbin/sersync -> /application/sersync_installdir_64bit/sersync/bin/sersync