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Top Forums UNIX for Beginners Questions & Answers Ssh script to validate ssh connection to multiple serves with status Post 303018320 by sreeram4 on Sunday 3rd of June 2018 06:25:15 PM
Old 06-03-2018
Ssh script to validate ssh connection to multiple serves with status

Hi,

I want to validate ssh connection one after one for multiple servers..... password less keys already setup but now i want to validate if ssh is working fine or not...

I have .sh script like below and i have servers.txt contains all the list of servers
Code:
#/bin/bash
for host in $(cat servers.txt); do
        ssh "$host" "$HOSTNAME" > "test.log";
done

its coming as error below...

Code:
./ssh.sh: line 5: syntax error near unexpected token `do'
./ssh.sh: line 5: `do ssh "$host" "$HOSTNAME" > "output.$host";'

---------- Post updated at 06:25 PM ---------- Previous update was at 06:13 PM ----------

I don;t have knowledge on scripting much... so just checking if anyone come across same and have code ..

Last edited by rbatte1; 06-04-2018 at 08:28 AM.. Reason: added code tags
 

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SSH-COPY-ID(1)						      General Commands Manual						    SSH-COPY-ID(1)

NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine and append the indicated identity file to that machine's ~/.ssh/autho- rized_keys file. If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your ssh-agent. Otherwise, if this: ssh-add -L provides any output, it uses that in preference to the identity file. If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin- gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory, if necessary.) NOTES
This program does not modify the permissions of any pre-existing files or directories. Therefore, if the remote sshd has StrictModes set in its configuration, then the user's home, ~/.ssh folder, and ~/.ssh/authorized_keys file may need to have group writability disabled manu- ally, e.g. via chmod go-w ~ ~/.ssh ~/.ssh/authorized_keys on the remote machine. SEE ALSO
ssh(1), ssh-agent(1), sshd(8) OpenSSH 14 November 1999 SSH-COPY-ID(1)
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