Linux命令(132)之sshpass

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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

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 ~]#