ssh bash script You can change the days according to your needs. 168. Linux Reader as an explorer to access Linux files on Windows If you’re reading this article about the Unix cat command, there is a lot more that you might need to do on your computer. $ ssh -t [email protected] 'cd /home/ostechnix/dir1 ; exec bash' Or, $ ssh -t [email protected] 'cd /home/ostechnix/dir1 && exec bash -l' Here, the -l flag sets "bash" as login shell. By enabling the SSH service in Linux, you can use the SSH protocol as an FTP (File Transfer Protocol) server or, you can get remote access to another Pc. This sensor type connects to a Linux/Unix system and executes a script file located on the target system. ), message can be any string and will be stored in the database. So any command after ssh-agent would perhaps be executed after logoff. 9,772 7 7 gold badges 40 40 silver badges 67 67 bronze How do I use ssh client program in a shell script under UNIX or Linux operating system? A. Note also that if you put the above code into an executable script, you can pass command line arguments ($1 and $2) to ssh and these will be expanded and then referenced on the remote side. 0 4624 632 ttyp0 S+ 12:09 0:00 grep ssh Hey Guys, I want to have a bash script on my computer (Mac OS X 10. We honestly, do not think it is a safer method to update production server in this way! For example, you can write scripts to automate daily, time-consuming tasks, and even quickly commit and push code to a Git repository with just a few simple commands. 1. org) If you run. ssh/known_hosts. sh extension. I know how do this by typing in "ssh [email protected] $ bash date. the BASH manual page): java -jar script. For a detailed list and descriptions of the channels that this sensor can show, see section Channel List. SSH Script Sensor To monitor used disk space of a volume via SSH you can use PRTG’s SSH Script Sensor in combination with your own shell script. It uses the awesome music server Groove Basin to do the actual streaming of your music library. 168. 00# ps aux|grep ssh root 16151 0. 1. 1. Main idea of this script is to, login to each host via ssh and get uid of user, service user that I trying to run this script, has already deployed ssh keys and provide sudo access to root with password less on all the server. The WSL2 IP address changes on reboot and you'll need to maintain your portproxy rules and firewall rules with the script listened at the end of that post. From Linux Shell Scripting Tutorial - A Beginner's handbook. Can run commands, copy files, tunnel ports and connect. g. The aim of this script is to ask to an admin on the local machine the IP address of the remote machine that will be configured, stock the IP in a variable and then automatically connect via ssh and execute the script that will change the hostname of the remote machine. If Machine A is a Unix-based system, you can use: ssh [email protected] 'bash -s' < local_script. It is possible to do SSH by running a shebang script from Mac or Linux Localhost, Update the Server where the SSH process is Private Key based. Alternatively, you can achieve the same result by specifying the ClientAliveInterval parameter alone. - vaniacer/sshto Bash script to detect if SSH port is active on remote host. /ex. If the SSH is running on some port other than the default port, make sure to mention it using the -p flag as follows: $ ssh -p < port-number > < User_name @ Hostname / IP_Address > < Command / Script > See full list on docs. jar <<EOF your input here EOF That means standard input (a. For Windows VMs, by using the System account. In case you choose not to add the host added to the host file you can also add the -o UserKnownHostsFile=/dev/null . So you don’t have to remember multiple passwords. There is a need for the sudo passwd on the remote machine. sh)")" Both stdin and stdout work correctly but the script is limited to the argument size (usually about 100k). CLI commands are typically run from text-based terminals. -bash-3. 0 7004 2284 ? Ss 12:07 0:00 sshd: [email protected] root 23653 0. SSH_ASKPASS The other approach you could try taking with ssh within a script is to experiment with the environment variable SSH_ASKPASS . How to test and check SSH connections with and without shell script examples. With cloud-init you do not need to convert your existing scripts into a cloud-config, cloud-init accepts multiple input types, one of which is a bash script. For the shortcut’s target, use the bash -c command we outlined above and point it at the Bash script you created. Security unwise warning: The -p option should be considered the least secure of all of sshpass’s options. 168. If a startup script is present, Compute Engine does the following: Copies the startup script to a local file in the instance. How to test and check SSH connections with and without shell script examples. Run a single command on remote systems via SSH. If you want to redirect the normal standard input of the program, you could use so called "here documents" (see e. The example included here is a custom script for an A10 Networks Thunder hardware or virtual appliance. Use the -e option (the password should be the first line of the filename): $ SSHPASS='!4u2tryhack' sshpass -e ssh [email protected] A shell script can itself launch subprocesses. SSH_ASKPASS The other approach you could try taking with ssh within a script is to experiment with the environment variable SSH_ASKPASS . 2) Bash Script to Check If Linux System is Running Over 30 Days. Is it possible to write a bash script, that would be started from machine A, logs in on a different machine B by ssh (both machines A and B would be Linux-Machines), copys some files on to machine B Install sshpass using, apt-get install sshpass then edit the script and put your linux machines IPs, usernames and password in respective order. com This example shows you different ways to do this within a single ssh session, including running multiple commands with bash or within a subshell. Scripts are used to run a series of commands. If the script is not a regular user i. example. Navigate to the directory location you wish to create the file, or edit an existing file. In Linux, the Secure Shell (SSH) is a method where you can access another computer through a secure and two-way encrypted communication system over the internet. sh hi. But when i try the same command from putty it is working. Then simply type: % eval `ssh-agent` % ssh-add <private key file> # e. 1. Building on the example above to add the public key to the remote server, here is a script I wrote that will do it for an array of servers (all assuming they have the same username you use on the local machine). microsoft. ssh/known_hosts file. If you want to easily mount or read Linux files on your Windows operating system, DiskInternals Linux Reader will help you do just that. Motivation. To avoid unpleasant surprises, you should tell the interpreter that your shell script is written for bash shell. But you still can’t run scripts without being interrupted for passphrases. Follow edited Feb 12 '19 at 7:51. hi. Snippet from the PRTG API documentation. Microsoft partnered with Canonical to create Bash on Ubuntu on Windows, running through a technology called the Windows Subsystem for Linux. org $ . Used it orchestrating vm creation using ansible. pssh is a program for executing ssh in parallel on a number of hosts. bash,command-line-arguments. sh, hence executing the script without the need to make the shell script executable and without declaring shebang directly within a shell script. xsession or related script. test. To run GNU/Linux GUI applications, you need to install them on Windows Ubuntu Bash. See full list on linuxtechi. By calling bash executable binary explicitly, the content of our file date. To install in Alpine Linux, just run sudo apk add keychain. sh You shouldn't have to copy the script to the remote server to run it. example. Multiple commands to test ssh connection in Linux and Unix. This is a small bash script that allows you to easily stream music from one computer to another over an SSH connection. a. Downside: I still don't know how to make it create the ssh-agent session within the shell script and continue to use that agent session with the for loop. You could even omit that line if you wanted to run the script by sourcing it at the shell, but let’s save ourselves some trouble and add it to allow scripts to be run non-interactively. stdin) is redirected and will be the text in the "here While the SSH commandline client on UNIX and Linux systems is how I interact most often with SSH servers on the remote end, there are times when it is helpful to script some action or series of actions rather than performing them interactively. com. It will store as many as you like by setting the variable. issue: /tmp/hostname. This is an equivalent of 1 hour, which implies that your ssh session will remain alive for idle time of 1 hour without dropping. This command must be inserted into the shell script before calling the actual command in the script. txt Bash Scripting Tutorial Guide linuxconfig. Instead, you need only to type the name of the script. sh filename1 dir1, then: $0 is the name of the script itself (script. When the network is available, the VM always runs startup scripts as follows: For Linux VMs, by using the root user. Below are instructions on how to set up the ssh server to run automatically at boot. 12 ( Fedora 21 ) SSH Remote Host : 192. Learn bash in y minutes (learnxinyminutes. I dont know where to begin, I think first I will need a ssh con | The UNIX and Linux Forums Small bash script to manage your ssh connections. Use the following format to add the ssh key fingerprint to a remote host. groovebasin-ssh - bash script to stream music over SSH. You can then stop your script from working when somebody has not already opened the channel by: ssh -o KbdInteractiveAuthentication=no . The script tells the actors what they should say and do. The following code is a Linux Expect script which will: Log into an A10 Networks Thunder system via SSH For shell script you may need to disable host key checking: $ sshpass -p '[email protected]' ssh -o StrictHostKeyChecking=no [email protected] In this post we’ll look at the Bash Shell ( B ourne A gain SH ell), which is a command-line interface (CLI) and is currently the most widely used shell. ssh [email protected] 'commands' and when I run this from the shell, its prompts me for the password, even after entering the password switch session opens but command doesnt run. Check 22 port status. 0 0. This saves time, instead of writing the same commands again and again. sh” via ssh on a remote Linux machine. It provides features such as sending input to all of the processes, passing a password to ssh, saving output to files, and timing out. To use ssh-agent, first get public-key authentication working without it, so that SSH works but you must enter your key passphrase each time you connect. If you don't know Run a bash script with cloud-init. Think of a script for a play, or a movie, or a TV show. Here is the file" Code: Bash is a Unix shell, which is a command line interface (CLI) for interacting with an operating system. In the above examples, I have explicitly mentioned bash as login shell. Execute a shell script on a remote machine using SSH on bash. This is an automatically generated Linux service status notification by /srv/chkserv script. Let us say you want to find Kernel details of your remote Linux system. The returned data for standard SSH Script sensors must be in the following format: returncode:value:message. then you just have to log in, and as long as you are logged in, the bash script will be able to open ssh connections. 00# grep Port /etc/ssh/sshd_config Port 22 #GatewayPorts no-bash-3. Add the following text to . A bash shell script example with My problem occurs when I try to run a bash script where I access via ssh from one server to the other 3 to run some commands, and at this moment I get the message of access denied. So an addition to the bash script could look like: ssh-keyscan $1 >> ~/. I’m using the SSH-Sessions Module for running the commands on the remote Linux Machine with CentOS-OpenLogic. One can use simple bash for loop as follows. com); Bash Guide (mywiki. This option is provided as part of the PRTG API. I have to deal with a lot of unix servers in my daily life, whether it’s at work or it’s my hosting server. bash_profile. Reply Link command-line server bash scripts ssh. The SSH client program can be used for logging into a remote machine or server and for executing commands on a remote machine. bash serverA "bash -s -- --time bye" --time bye NOTE: Just to make it clear that wherever the redirection appears on the command line makes no difference, because ssh calls a remote shell with the concatenation of its arguments anyway, quoting doesn't make much difference, except when you need quoting on the remote shell like in Getting started Introduction. ssh | sftp [email protected] scp backup_authorized_keys If ssh does not have a terminal associated with it but DISPLAY and SSH_ASKPASS are set, it will execute the program specified by SSH_ASKPASS and open an X11 window to read the passphrase. I need a bash script which can login to an other mashin via SSH and then run some commands and then return the result to my mashine. 0 0. 0. When you log in to a remote computer, you must provide the user name and password for the account you are logging in to. This is particularly useful when calling ssh from a . bash interactive script pass input. ClientAliveInterval 3600 SFTP (SSH File Transfer Protocol) is a secure file protocol used to access, manage, and transfer files over an encrypted SSH transport. test. It allows your shells and cron jobs to share a single ssh-agent process. - vaniacer/sshto These scripts will utilize bash arrays, if-else, loops and other concepts you have learned in this series. Follow the steps in the section named "Generating a new SSH Key" found in the following documentation from GitHub: Generating a new SSH key and adding it to the ssh-agent. Any command that you can run from the command line can be used in a bash script. SSH uses the agent variables set by me outside of the script and successfully authenticates with the key. ssh/config (. /bash-script. I have the following that I am att | The UNIX and Linux Forums . The SSH Script sensor connects to a Linux/Unix system via Secure Shell (SSH) and executes a script file located on the target system. My absolute favorite is its ability to let you run a command on a remote server by passing the -t flag. Edit the /etc/ssh/sshd_config file by running the command sudo vi /etc/ssh/sshd_config and do the following Bash script using scp and ssh: Drigo: Linux - Newbie: 6: 08-05-2011 06:04 AM: SSH connection from BASH script stops further BASH script commands: tardis1: Linux - Newbie: 3: 12-06-2010 09:56 AM [SOLVED] Running a bash script via ssh: jhameier: Linux - Newbie: 4: 04-09-2010 07:35 AM: ssh and bash script question: babag: Linux - Networking: 4: 06 Bash script execution with an output: linuxconfig. Create a shell script and execute it. pfSense-SSH-backup a bash script that will pull and back up the pfsense XML. Increase SSH Timeout. Command to exit script but not the SSH session. sh bash. sh) $1 is the first argument (filename1) $2 is the second argument (dir1) 5 Ways to Keep SSH Sessions Running After Disconnection. My script: #!/bin/bash. If you ever need to provide a password for SSH login inside a bash script or a shell command, to avoid being asked a password when SSH keys are not used, it can be done with usage of expect command, or sshpass utility. This is a requested guide for bash scripting, take it as for Educational purpose. does not have a login shell then using -o StrictHostKeyChecking=no option on the command line should keep the question from being asked. One way you can do it is to write the function in the ssh command. An example: ssh -t [email protected] Because, I know that Bash is is the default shell in my remote system. To create a shortcut to a Bash script from within Windows, just create a shortcut like normal. The first method is a quick overview of running remote commands over SSH, the second method uses the bash command to run remote commands over SSH, and the third method uses HERE documents to run remote commands over SSH. Small bash script to manage your ssh connections. Multiple commands to test ssh connection in Linux and Unix. $ ssh < . ex raw content of ~/. When we log out of the session or the session times out after being idle for quite some time, the SIGHUP signal is send to the pseudo-terminal and all the jobs that have been run on that terminal, even the jobs that have their parent jobs being initiated on the pseudo-terminal are also sent the SIGHUP signal and are forced to terminate. In this tutorial, we will show you how to use the Linux `sftp` command. SSH remoting creates a PowerShell host process on the target computer as an SSH subsystem. This bash script collects server running over 30 days and sends the report to the given email id. 10" and then typing in the password "alpine". command_timeout - timeout for ssh command, default is 10m; key - content of ssh private key. These subshells let the script do parallel processing, in effect executing multiple subtasks simultaneously. /script 192. sh file like running command on server. sh #-------------------- uptime free -m df -h uname -a hostnamectl Output for the above command. Also you can now ssh into several remote boxes using the same passphrase, as long as these remote machines have your public key. ~/. I have a txt file with a bunch of commands. ssh connects and logs into the specified hostname. k. 2. txt Number of elements: 4 Bash Scripting Tutorial Guide linuxconfig. In particular, SSH gives you the ability to remotely execute a bash script. Bash is available by default on Linux and macOS operating systems. Arguments to the script may work, at the end of the line, possibly following an extra "--" argument. Example CLI Management Script. The "-t" to allocate a pty is optional. Sample ~/. e. The -e option when used in shell script looks like this: My Setup Environment SSH Client : 192. file is executed when you login using console or remotely using ssh. com. It builds menu (via dialog) from your ~/. An important detail is that if I try to access another server via ssh running directly on the terminal I can access it normally. /script 192. These commands are a mixture of commands we would normally type ouselves on the command line (such as ls or cp for example) and commands we could type on the command line but generally wouldn't (you'll discover these over the next few pages). I need a bash script which can login to an other mashin via SSH and then run some commands and then return the result to my mashine. It builds menu (via dialog) from your ~/. Here’s what the man page explains: “If ssh needs a passphrase, it will read the passphrase from the current terminal if it was run from a terminal. This command is used to start the SSH client program that enables secure connection to the SSH server on a remote machine. PSSH is short abbreviation for Parallel Secure SHell or Parallel SSH. In the context of Bash scripts we are telling the Bash shell what it should do. Remote script. Create Users And Change Passwords With A Bash Script. I recommend that you use ssh’s public key authentication. If you have been using the Linux Custom Script Azure Extension to run your scripts, you can migrate them to use cloud-init. sql. txt file contains list of IP addresses line by line Here is a small shell script, #!/bin/bash if `service ssh status | grep -q running` then service ssh stop echo "ssh stopped by user" else service ssh start echo "ssh started by user" fi After saving it as script. I am trying to create a script to ssh into an hp switch and grab both the running and startup configs. ssh should be found in the root of your user home SSH remoting lets you do basic PowerShell session remoting between Windows and Linux computers. ssh/id_RSA % ssh-add -l thx to hetzner tutorial: echo mkdir . I have access to both linux and windows, running into an issue on the linux side with ssh command execution is not supported, and on the windows side using powershell to sendkeys to the ssh window and run the copy command. Please note the spacing inside the [ and ] brackets! Hi everyone, I am trying to figure out a way to ssh to remote server and check if file exists, and if it doesn't I want to leave the script with an exit status of 5. A startup script can be of any file type. Can run commands, copy files, tunnel ports and connect. Using 'vim' to create and edit a file. Improve this question. bash_profile. SSH: Run Bash Script on Remote Server The equally common situation, when there is some Bash script on a Linux machine and it needs to connect from it over SSH to another Linux machine and run this script there. 118) and As stated above, vim includes more features to edit files, but is also more difficult to learn. I need a bash script which can login to an other machine via SSH and then run some commands and then return the result to my machine. sh" ” to run the example script above. Eventually we'll implement a general hosting model, similar to WinRM, to support endpoint configuration and JEA. Log into your server via SSH. The Timeout value will be 1200 seconds * 3 = 3600 seconds. ssh/config. DevOps & SysAdmins: get informations from x servers per ssh by bash scriptHelpful? Please support me on Patreon: https://www. vim is only recommended for advanced users with prior experience working in the Linux shell. The sensor can show a value returned by the script as well as a return message in plain text. These systems can also be managed with CLI commands embedded in scripts. Scripts can be written for all kinds of interpreters — bash, tsch, zsh, or other shells, or for Perl, Python, and so on. SSH-agent to the rescue A bash/shell script contains a sequence of commands which are stored in a single file with a. 1" socket= $(mktemp -t deploy-ssh-socket) rm ${socket} # delete socket file so path can be used by ssh exit_code=0 cleanup { # Stop SSH port forwarding process, this function may be # called twice, so only terminate port forwarding if the # socket still exists if [ -S ${socket}]; then echo echo " Sending exit signal to Bash script SSH is a common tool for Linux users. Automating user management with bash script. This is a quick reference to getting started with Bash scripting. ssh/id_rsa; key_path - path of ssh private key; fingerprint - fingerprint SHA256 of the host public key, default is to skip verification; script - execute commands; script_stop - stop script after first failure Keychain is a special bash script designed to make key-based authentication incredibly convenient and flexible […] The keychain act as a manager for ssh-agent, typically run from ~/. com Each shell script running is, in effect, a subprocess (child process) of the parent shell. 2. Typically such user accounts are secured using passwords. sh #!/bin/bash #Name: remote-test. 0. Here is the -f option when used in shell script: $ sshpass -f pass_file ssh -o StrictHostKeyChecking=no [email protected] Windows is only involved peripherally. It is needed when you want to run a command from a local server or a Linux workstation. 168. If email is configured on the system it can email the user on failure of a back up. $ vi /tmp/remote-test. Hot Network Questions SSH and bash scripts are related in that when used together, they provide an extremely powerful capability. bashrc; Create a New SSH Key. I dont know where to begin, I think first I will need a ssh con | The UNIX and Linux Forums 2. What you want is a session-script that contains your sessions commands like this: #!/bin/bash ssh-add /path/to/key bash -i # or other session starter Passing commands through an SSH shell in a bash script. Close ssh session at the end of bash script. bash script with permanent ssh connection. After that run that script. These two scripts are very important for the system admin who regularly works with mail servers and somehow forgets to backup his system username and password! Let’s say somehow we lost the usernames and passwords of the mail server. The user must prove his/her identity to the remote machine using one of several methods depending ssh -o StrictHostKeyChecking=no -l username hostname "pwd; ls" This should disable the host key check and will straight away add the host key to the list of known hosts. org $ Bash if / else / fi statements Simple Bash if/else statement. Practically every Unix and Linux system includes the ssh command. So an addition to the bash script could look like: ssh-keyscan $1 >> ~/. Value has to be a 64-bit integer or float and will be used as the resulting value for this sensor (for example bytes, milliseconds, etc. This tool is very useful when you want to add bulk. bash_profile file Home » Scripts » Expect Script SSH Example Tutorial Expect script is a great linux/unix utility. - ssh_port_checker. A script for a computer tells the computer what it should do or say. com, then run cat /etc/hosts in your shell and return the output. ssh/config. . Below are three methods to send multiple line commands over SSH. SSH is very flexible, and it comes with many options. How to test ssh connection using bash script in Linux June 3, 2020 July 22, 2018 by admin There can be multiple scenarios due to which ssh connection may fail, some of them can be ssh vm24 -t bash -c "$ (printf "%q" "$ (< shell-test. On top of If the script is being run as a regular user then once you type in 'yes' the question is no longer asked since the host key is stored in the users . I have a bash script where I have to send password which dump database on remote machine, so its like : !/bin/sh /usr/bin/ssh -p 91899 [email protected] mysqldump -u db_user -p#8111*@uu( my_database | gzip -c > my_database. Related: How to Enable Two-Factor Authentication for SSH Connection. patreon. When command is specified, it is executed on the remote host/server instead of a login shell. Creating a user on multiple servers maybe something that you would do on a daily basis as a sysadmin. The above addition would take the argument from the command (say, for example, . A script written for Zsh shell won't work the same in bash if it has arrays. SSH is also used to access local Bash scripts from a local or remote server. 2020-03-30 linux. ssh/prod_rsa $ ssh <[email protected]_Address-or-Doman_name> <Command-or-Script> Allow me to show you some examples. The syntax is as follows for executing commands over ssh: ssh [email protected] command1 ssh-agent is supposed to start a session and when it finishes the user session is over. example. Share. sh is loaded and interpreted as Bash Shell Script . Here’s what the man page explains: “If ssh needs a passphrase, it will read the passphrase from the current terminal if it was run from a terminal. 6. In this example, run uptime command on three Linux server named box1, box2, and box3: for s in box1 box2 box3 do ssh vivek @$ {s} uptime done Running local bash script on remote system The shell scripts often have almost the same syntaxes, but they also differ sometimes. org $ cat bash. 0. 0. The Command/Script is the command or script you want to run on the remote system. Configure SSH for Git Hosting Server. #! /bin/bash # ip="1. com. The objective of this Post is to answer How to SSH from Shell Script to Remote Servers and Execute Multiple Commands, A shell script ssh with password, ssh without password prompt, handle password prompt in a shell script, ssh without key pair, SCP command in shell script without password prompt. 8) that can ssh into my iPod and respring. Check 22 port status. For example, you’d point a shortcut at ” bash -c "~/myscript. 1. Using SSH with the BASH Command As mentioned above, in order to parse the local variable HELLO so it is used in the remote if statement, the bash command can to be used: #!/bin/bash HELLO="world" ssh $HOST bash -c "' ls pwd if true; then echo $HELLO else echo "This is false" fi echo "Hello world" '" Managing Network Devices with SSH Scripts Network and security devices typically have a text based or Command Line Interface (CLI) management interface which can access and manage systems across a network connection. A Bash script is a plain text file which contains a series of commands. It is a tedious a task, and so let's create a bash script that automates it. A Bash script is a plain text file which contains a series of commands. Groove Basin is actually incredibly easy to use, and works Secure shell (SSH) is the encrypted protocol used to log in to user accounts on remote Linux or Unix-like computers. Melebius. C. com 'cat /etc/hosts' This will ssh to webserver1. The ssh command is used from logging into the remote machine, transferring files between the two machines, and for executing commands on the remote machine. But it is throwing “sudo: sorry, you must have a tty to run sudo”. For example, array index starts at 1 in Zsh instead of 0 in bash. g. 11 ( CentOS 7 ) If you are dealing with a number of Linux remote servers, then SSH Password-less login is one of the best ways to automate tasks such as automatic backups with scripts, synchronization files using SCP, and remote command execution. wooledge. 118) and The following example allows users to run local bash script “remote-test. In order to run command on your Ubuntu Bash, you have to modify the script. Comment and share: How to install sshpass to make using ssh in shell scripts even easier By Jack Wallen Jack Wallen is an award-winning writer for TechRepublic, The New Stack, and Linux New Media. com/roelvandepaarWith t Linux 101 Hacks 2nd Edition eBook - Practical Examples to Build a Strong Foundation in Linux; Bash 101 Hacks eBook - Take Control of Your Bash Command Line and Shell Scripting; Sed and Awk 101 Hacks eBook - Enhance Your UNIX / Linux Life with Sed and Awk; Vim 101 Hacks eBook - Practical Examples for Becoming Fast and Productive in Vim Editor This other blog post - over here - has Windows only forwarding ports, and uses WSL2's Linux OpenSSH and authenticates against Linux. I am running this script on a linux host. The above addition would take the argument from the command (say, for example, . sh, run it as, (give it execution permission) The ssh-keycan tool allows you to append the ssh key fingerprint to the user-known_host file on the remote server. After starting the ssh-agent, add your private key to it as follows: # eval "$ (ssh-agent -s)" # ssh-add ~/. gz Run SSH Copy Script Next, use ssh-agent to manage your keys, which holds your decrypted private key in memory and uses it to authenticate logins. /script. ssh/known_hosts. The script can be customized for other network and security systems including Cisco, Juniper, etc. SSH client is a program for logging into a remote machine and for executing commands on a remote machine. I have been reading a lot of questions already asked here, however, somehow nothing is working for me. ssh bash script