尝试使用下面的脚本

# cat /tmp/ambari-server-sync-ldap-unattended.sh

# !/usr/bin/expect

set timeout 20
spawn /usr/sbin/ambari-server sync-ldap --groups=/etc/ambari-server/ambari-groups.csv
expect "Enter Ambari Admin login:" { send "admin\n" }
expect "Enter Ambari Admin password:" { send "notTheRealPasswordOfCourse\n" }
interact

查看expect。
一个简单的例子是使用下面的脚本。

# !/usr/bin/expect -f

ambari-server sync-ldap --all

# wait until the prompt shows "enter username". Change this to adapt to your application.

expect "enter username"
send "your_username\r"

# wait until the prompt shows "password: ". Change this to adapt to your application.

expect "password: "
send "yourPAssWoRD\r"

interact

免责声明：我从未使用过 ambari-server 之前的命令。