02-17-2013
One thing aboug ssh family commands is that they take the password from /dev/tty not stdin, so you need an expect layer or something similar to inject scripted passwords.
It is not so hard to set up trusted PPKey and not need a password.
A cron driven script might 'echo $$ >$HOME/.my_app_pid' after checking 'if [ 0 = $( ps -u $user -p $(<$HOME/.my_app_pid ) | grep -c $0 ) ]' to make sure old servers are not running. This is what I meant by pid file.
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LEARN ABOUT REDHAT
adsl-setup
ADSL-SETUP(8) System Manager's Manual ADSL-SETUP(8)
NAME
adsl-setup - Shell script to configure Roaring Penguin PPPoE client
SYNOPSIS
adsl-setup
DESCRIPTION
adsl-setup is a shell script which prompts you for various pieces of information and sets up an /etc/sysconfig/network-scripts/ifcfg-ppp0
configuration script for the adsl-start, adsl-stop and adsl-connect scripts.
AUTHOR
adsl-setup was written by David F. Skoll <dfs@roaringpenguin.com>.
The pppoe home page is http://www.roaringpenguin.com/pppoe/.
SEE ALSO
pppoe(8), adsl-start(8), adsl-stop(8), adsl-connect(8), pppd(8), pppoe.conf(5), adsl-status(8), pppoe-sniff(8), pppoe-relay(8), pppoe-
server(8)
4th Berkeley Distribution 21 February 2000 ADSL-SETUP(8)