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Top Forums Shell Programming and Scripting Query on executing awk using SSH Post 302909642 by Scrutinizer on Friday 18th of July 2014 04:33:48 AM
Old 07-18-2014
Because the command string is enclosed in double quotes and so the shell will try to expand variable $2, therefore the $-sign needs to be escaped..

There are two sections protected by double quotes:
Code:
"ps -ef | grep "

and
Code:
" | grep -v 'grep' | awk '{print \$2}'|wc -l"

To join them into one section protected by double quotes, you would need to also escape the double quotes within the double quotes.. ...grep \"pattern\"...
 

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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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