How to pass password to ssh/scp command in bash script

sshspass is a very useful tool for running ssh authentication in non-interactive mode. Using sshspass, you can use passwords for ssh or scp commands without interaction, which helps when using passwords in shell scripts. We recommend using key-based authentication instead.

Install SSHPASS

For most recent operating systems, the sshpass package is available in the default package repository. It can be installed on your system using the following command.

On Debian:

$ sudo apt install sshpass

On CentOS:

$ yum --enablerepo = epel -y install sshpass

Using SSHPASS

sshspass Use the sshspass environment variable to store user passwords . Need to use sshspass variable and password first and then use this command. Below is a simple shell script using sshspass.

export SSHPASS=ry3AvbWO0oupYX9HCMzp0Axx
sshpass -e scp testfile.csv user@example.com:/uploads/

You can also use sshpass to run the ssh command, as shown below

sshpass -e ssh user@example.com

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