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Full Discussion: ssh and for loop
Top Forums UNIX for Dummies Questions & Answers ssh and for loop Post 302521988 by kumaran_5555 on Friday 13th of May 2011 03:30:59 AM
Old 05-13-2011
The shell always interprets the $ prefixed names as variable, and in your current shell you may not have a variable N, so you will get null being replaced for $N and this code will be sent trough ssh

Finally the execution will not work in the remote machine.

But when you escape the $ , the shell doesn't do anything except removing the \ .

So in the remote machine it works fine.
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LEARN ABOUT CENTOS

ssh-ldap-helper

SSH-LDAP-HELPER(8)					    BSD System Manager's Manual 					SSH-LDAP-HELPER(8)

NAME

     ssh-ldap-helper -- sshd helper program for ldap support

SYNOPSIS

     ssh-ldap-helper [-devw] [-f file] [-s user]

DESCRIPTION

     ssh-ldap-helper is used by sshd(1) to access keys provided by an LDAP.  ssh-ldap-helper is disabled by default and can only be enabled in the
     sshd configuration file /etc/ssh/sshd_config by setting AuthorizedKeysCommand to ``/usr/libexec/openssh/ssh-ldap-wrapper''.

     ssh-ldap-helper is not intended to be invoked by the user, but from sshd(8) via ssh-ldap-wrapper.

     The options are as follows:

     -d      Set the debug mode; ssh-ldap-helper prints all logs to stderr instead of syslog.

     -e      Implies -w; ssh-ldap-helper halts if it encounters an unknown item in the ldap.conf file.

     -f      ssh-ldap-helper uses this file as the ldap configuration file instead of /etc/ssh/ldap.conf (default).

     -s      ssh-ldap-helper prints out the user's keys to stdout and exits.

     -v      Implies -d; increases verbosity.

     -w      ssh-ldap-helper writes warnings about unknown items in the ldap.conf configuration file.

SEE ALSO

     sshd(8), sshd_config(5), ssh-ldap.conf(5),

HISTORY

     ssh-ldap-helper first appeared in OpenSSH 5.5 + PKA-LDAP .

AUTHORS

     Jan F. Chadima <jchadima@redhat.com>

BSD
								  April 29, 2010							       BSD
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