Question

如何写shell脚本自动通过ssh命令登录到服务器

Answer 1

用EXPECT实现用密码登录，也可配置成不需要密码

#!/usr/bin/expect -f

if { $argc < 3 } {

puts stderr "Usage: $argv0 IPAdress Login OldPasswd"

exit
}

set IPADDR [lindex $argv 0]
set LOGIN [lindex $argv 1]
set OLD_PW [lindex $argv 2]

set timeout 30

stty -echo

spawn ssh $IPADDR -l $LOGIN
expect {
"*Password:*" {
send "$OLD_PW\r"
exp_continue
} "*Last login:*" {
#interact
exit 0
} timeout {
send_user "connection to $IPADDR timeout!\n"
exit 1
} "*incorrect*" {
send_user "password incorrect!\n"
exit 2
} "*Permission*" { #for LINUX ssh
send_user "password Error!\n"
exit 2
} eof {
exit 3
}
}