Installation:
Example for CentOS:
[root@tutorialspots ~]# yum install -y sshpass Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile epel/x86_64/metalink | 13 kB 00:00 * base: linux.darkpenguin.net * epel: mirror.imt-systems.com * extras: mirror.checkdomain.de * updates: mirror.fra10.de.leaseweb.net base | 3.6 kB 00:00 epel | 4.7 kB 00:00 extras | 2.9 kB 00:00 ius | 1.3 kB 00:00 nodesource | 2.5 kB 00:00 updates | 2.9 kB 00:00 (1/3): updates/7/x86_64/primary_db | 2.9 MB 00:00 (2/3): epel/x86_64/primary_db | 6.8 MB 00:00 (3/3): epel/x86_64/updateinfo | 1.0 MB 00:00 Resolving Dependencies --> Running transaction check ---> Package sshpass.x86_64 0:1.06-2.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: sshpass x86_64 1.06-2.el7 extras 21 k Transaction Summary ================================================================================ Install 1 Package Total download size: 21 k Installed size: 38 k Downloading packages: sshpass-1.06-2.el7.x86_64.rpm | 21 kB 00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : sshpass-1.06-2.el7.x86_64 1/1 Verifying : sshpass-1.06-2.el7.x86_64 1/1 Installed: sshpass.x86_64 0:1.06-2.el7 Complete!
Usage
sshpass can accept password – as an argument, read it from file or via environment variable.
Method 1: Password as an argument
sshpass -p yourpassword ssh -o StrictHostKeyChecking=no -o LogLevel=quiet root@ip command
Example:
[root@tutorialspots ~]# sshpass -p yourpassword ssh -o StrictHostKeyChecking=no -o LogLevel=quiet root@tutorialspots.com 'free -m' total used free shared buff/cache available Mem: 31923 888 471 0 30563 30643 Swap: 32733 5 32728
Method 2: Password from file
sshpass -f password-file ssh -o StrictHostKeyChecking=no -o LogLevel=quiet root@ip command
Method 3: Password from environment variable
export SSHPASS="your-password" sshpass -e ssh -o StrictHostKeyChecking=no -o LogLevel=quiet root@ip command
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(July 3, 2020 - 11:24 am)[…] Linux: how to install and use sshpass […]