ssh 直接免密输入 sudo 密码

#推荐方案：macOS Keychain

保存sudo密码

#先保存一次：

security add-generic-password \
-a "$USER" \
-s "sudo-password" \
-w

#它会提示你输入密码，密码存进 macOS Keychain。

security add-generic-password \
-a "$USER" \
-s "你的 sudo 密码" \
-w

#如果你想修改密码

security delete-generic-password \
-a "$USER" \
-s "sudo-password"

更推荐：直接更新，不删除

security add-generic-password \
-U \
-a "$USER" \
-s "sudo-password" \
-w

#-U 表示如果已经存在就更新。

脚本

#!/usr/bin/expect -f
set timeout -1
if {$argc != 1} {
    puts "Usage: $argv0 <host>"
    exit 1
}
set host [lindex $argv 0]
set password [exec security find-generic-password \
    -a [username] \ # 用真实用户名替换掉 [username]
    -s "sudo-password" \
    -w]

spawn ssh -t $host "sudo -iu root"
expect {
    -re "(?i).*password.*:" {
        send "$password\r"
    }
}
interact