linux命令之sshpass
1.sshpass介绍
linux命令sshpass是用来实现非交换的ssh操作
2.sshpass用法
sshpass [参数] command
sshpass参数
参数 |
说明 |
-p |
指定明文密码 |
3.实例
3.1.sshpass安装
默认系统中没有sshpass命令，需要安装sshpass rpm包
命令：
yum install sshpass
[root@logstash ~]# yum install sshpass
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
CentOS7 | 3.6 kB 00:00:00
epel | 4.7 kB 00:00:00
nginx-stable | 2.9 kB 00:00:00
(1/2): epel/x86_64/updateinfo | 1.0 MB 00:00:02
(2/2): epel/x86_64/primary_db | 7.0 MB 00:00:04
Resolving Dependencies
--> Running transaction check
---> Package sshpass.x86_64 0:1.06-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
sshpass x86_64 1.06-1.el7 epel 21 k
Transaction Summary
==============================================================================================================
Install 1 Package
Total download size: 21 k
Installed size: 38 k
Is this ok [y/d/N]: y
Downloading packages:
sshpass-1.06-1.el7.x86_64.rpm | 21 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : sshpass-1.06-1.el7.x86_64 1/1
Verifying : sshpass-1.06-1.el7.x86_64 1/1
Installed:
sshpass.x86_64 0:1.06-1.el7
Complete!3.2.查看sshpass帮助信息
命令：
sshpass -help
[root@logstash ~]# sshpass -help
Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters
-f filename Take password to use from file
-d number Use number as file descriptor for getting password
-p password Provide password as argument (security unwise)
-e Password is passed as env-var "SSHPASS"
With no parameters - password will be taken from stdin
-P prompt Which string should sshpass search for to detect a password prompt
-v Be verbose about what you're doing
-h Show help (this screen)
-V Print version information
At most one of -f, -d, -p or -e should be used
[root@logstash ~]#3.3.使用sshpass实现非交互ssh登录
命令：
sshpass -v -p root ssh -o StrictHostKeyChecking=no root@192.168.10.250
备注：第一次登录时，必须使用-o StrictHostKeyChecking=no，否则会报错
[root@logstash ~]# sshpass -v -p root ssh root@192.168.10.250
SSHPASS searching for password prompt using match "assword"
SSHPASS read: The authenticity of host '192.168.10.250 (192.168.10.250)' can't be established.
ECDSA key fingerprint is SHA256:jDv7l+tTu6PGYgJyRpb8HkkI7Ywrapqas5w628rTGqs.
ECDSA key fingerprint is MD5:7c:ff:bd:04:46:75:88:65:2c:23:08:97:c8:c1:36:13.
Are you sure you
SSHPASS detected host authentication prompt. Exiting.
[root@logstash ~]# sshpass -v -p root ssh -o StrictHostKeyChecking=no root@192.168.10.250
Warning: Permanently added '192.168.10.250' (ECDSA) to the list of known hosts.
SSHPASS searching for password prompt using match "assword"
SSHPASS read: root@192.168.10.250's password:
SSHPASS detected prompt. Sending password.
SSHPASS read:
Last login: Thu Nov 23 08:53:47 2023 from 192.168.10.1
[root@lnmp ~]#后续登录时，可以使用sshpass -v -p root ssh root@192.168.10.250
[root@logstash ~]# sshpass -v -p root ssh root@192.168.10.250 #-v可省略
SSHPASS searching for password prompt using match "assword"
SSHPASS read: root@192.168.10.250's password:
SSHPASS detected prompt. Sending password.
SSHPASS read:
Last login: Thu Nov 23 09:31:53 2023 from 192.168.10.244
[root@lnmp ~]# hostname
lnmp
[root@lnmp ~]# exit
logout
Connection to 192.168.10.250 closed.
[root@logstash ~]#