Just a tip for using ssh-agent(1) effectively in BASH(1). If you take
advantage of functions, you can reduce the number of ssh-agent's you
have running on any one system to one per host. An added advantage is
that if you can refresh/set the ssh-agent environment with any open
shell on that host.
# sagent -- Update current environment w/ssh-agent
# * Checks for presense of stamp file, sources it
# * Checks for presense of ssh-agent process
# * Starts ssh-agent if not already running, saving stamp file
sagent(){
if [ -e $HOME/.ssh-agent.$HOSTNAME ]
then
source $HOME/.ssh-agent.$HOSTNAME
if (ps -ef|grep $USER|grep -v grep|grep $SSH_AGENT_PID > \
/dev/null)
then
return 0
else
rm $HOME/.ssh-agent.$HOSTNAME
fi
fi
eval $(ssh-agent -s|tee $HOME/.ssh-agent.$HOSTNAME)
}
Quick summary of ssh-agent: allows you to type in a password once for
any private key you add.
bash$ ssh-add <file>
A good alias to include with the above function is 'addids'.
# addids -- Add known SSH keys
alias addids="ssh-add ~/.ssh/id{entity,_dsa,_rsa}"
--
Chad Walstrom <chewie at wookimus.net> | a.k.a. ^chewie
http://www.wookimus.net/ | s.k.a. gunnarr
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