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Top Forums Shell Programming and Scripting How to print everything after a string match Post 302673581 by Scott on Wednesday 18th of July 2012 05:50:09 AM
Old 07-18-2012
You could use a simple grep
Code:
$ if ! grep -v "=[^=]" authorized_keys; then
  echo "Found unknown key(s)"
fi

To process each key individually, perhaps a loop is better:
Code:
while read KEY; do
 [[ $KEY =~ =[^=] ]] || echo Unknown Key:
  echo $KEY
done < ~/.ssh/authorized_keys


Last edited by Scott; 07-18-2012 at 07:06 AM.. Reason: Added loop
 

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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 (presumably using a login password, so password authentication should be enabled, unless you've done some clever use of multiple identities) It also changes the permissions of the remote user's home, ~/.ssh, and ~/.ssh/authorized_keys to remove group writability (which would oth- erwise prevent you from logging in, if the remote sshd has StrictModes set in its configuration). 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) SEE ALSO
ssh(1), ssh-agent(1), sshd(8) OpenSSH 14 November 1999 SSH-COPY-ID(1)
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