我需要创建一个bash脚本,该脚本将在一批机器上远程运行另一个脚本。为此,我将通过SSH传递一个脚本。
ssh -p$port root@$ip 'bash -s' < /path/to/script/test.sh
我以为它会使用我的RSA密钥,但我遇到了错误:
"Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)"
我试着用sshpass,但没有用。所以我的下一个解决方案是使用expect。我以前从未使用过expect,我确信我的语法已经偏离了
ssh -p$port root@$ip 'bash -s' < /path/to/script/test.sh
/usr/bin/expect <<EOD
expect "password"
send "$spassn"
send "n"
EOD
我对所有机器都有root访问权限,只要代码留在bash中,任何解决方案都可以。请记住,这将在一个循环中完成,该循环使用从父脚本传递的全局变量($spass、$ip、$port等)。
你做错了两种方式:
-
如果您希望
expect
与ssh
交互,则需要从expect
脚本启动ssh
,而不是在此之前。 -
如果将脚本(
/path/to/script/test.sh
)放入ssh
的stdin
,则无法再与ssh
进程通信。
您应该使用scp将脚本复制到远程主机,然后运行它
预期脚本可能如下所示:
/usr/bin/expect <<EOF
spawn ssh -p$port root@$ip
expect "password"
send "$Spassr"
expect "$ "
send "/path/to/script/on/remote/server/test.shr"
expect "$ "
interact
EOF
#!/usr/bin/expect
#Replace with remote username and remote ipaddress
spawn /usr/bin/ssh -o StrictHostKeyChecking=no username@IPAddress
#Replace with remote username and remote ipaddress
expect "username@IPAddress's password: "
#Provide remote system password
send "urpasswordn"
#add commands to be executed. Also possible to execute bash scripts
expect "$ " {send "pwdn"} # bash command
expect "$ " {send "cd mytestn"}
expect "$ " {send "./first.shn"} # bash scripts
expect "$ " {send "exitn"}
interact