You may be familiar with my tutorial on getting your ssh-agent to work inside screen. If not, have a look.
There’s always room for improvements! Here’s an excerpt from my current .bash_profile:
function Attach(){
grabssh
if [[ -z "${1}" ]] ; then
local n=`screen -wipe | egrep -i 'attached|detached' | wc -l`
if [[ "${n}" -gt 1 ]]; then
check_screen
return
fi
fi
echo screen -d -R ${*}
screen -d -R ${*}
}
check_screen () {
# Look in the path?
type screen > /dev/null 2>&1
if [[ ${?} = 0 ]]; then
tmp=0
echo
for scr in `screen -wipe | egrep -i 'attached|detached' | awk '{print $1"_"$2}'`
do
echo "Screen available: ${scr}"
if [[ ${tmp} -eq 0 ]] ; then
myscreen=${scr%_*}
fi
tmp=$(($tmp+1))
done
if [[ -n "${myscreen}" ]] ; then
echo
echo "Enter to attach to ${myscreen},"
echo "'n' to move on,"
echo "unique bits to attach elsewhere"
read eon
if [[ -z "${eon}" ]] ; then
[[ -z "${myscreen}" ]] && return
eon=${myscreen}
fi
if [[ "${eon}" != 'n' ]] ; then
Attach ${eon}
fi
fi
fi
}
[[ -n "$PS1" ]] && check_screen
If screen(s) exist, I’m presented with a list of them on login. I’m then able to hit return for a default, or type in which of them I wish to resume.
If I don’t want to resume any screen I can simply hit ‘n’ and go on about my day.
The Attach and check_screen functions are actually in a different file that is sourced by .bashrc and conditionally by .bash_login. This allows the functions to be used in non-login shells (in local terminal windows for example).
Tags: bash, screen, ssh
