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Top Forums UNIX for Dummies Questions & Answers set variables on remote system Post 302146820 by funksen on Thursday 22nd of November 2007 10:14:35 AM
Old 11-22-2007
set variables on remote system

Hi,

I try to run a script on remote systems with ssh

it should execute a command, read values from stdout, use it as input for a loop
and works with this variable on remote system

but the variable isn't working, I guess because export, echo , or the loop itself are shell builtins and not a binary/script on the remote system

how can I get something like this to work:

ssh hostname "a=5 ; echo $a"

the variable should be set in a new process environment on the remote system, not on local system

or

ssh hostname "for i in $(command1); do command2 $i; done"

thanks in advance

funksen
 

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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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