sudo chmod 660 $TTY
sudo chown $USER.tty $TTY
+# FIXME: fix for screen race-conditions
+PID_FILE_="/var/run/grml-screen"
+MY_PID_="$$"
+if [ ! -d "/var/run/screen/S-$USER" ]; then
+ # no /var/run/screen/S-$USER and possible no /var/run/screen either -> locking
+ for i in `seq 40`; do # 40*0.25 = 10 seconds
+ if lockfile-create --retry 0 $PID_FILE_; then
+ echo $MY_PID_ >$PID_FILE_
+ break
+ fi
+ sleep 0.25
+ done
+fi
+if [ -f $PID_FILE_ ]; then
+ # FORK BEGIN
+ (
+ for i in `seq 40`; do # 40*0.25 = 10 seconds
+ if [ ! -d "/var/run/screen/S-$USER" ]; then
+ sleep 0.25 # educated guess
+ else
+ break
+ fi
+ done
+ if [ `cat $PID_FILE_` = $MY_PID_ ]; then
+ rm $PID_FILE_
+ lockfile-remove $PID_FILE_
+ fi
+ )&
+ # FORK END
+else
+ SLEEP_TIME_="$(( $$ % 5 * 5 + 5 ))"
+ echo "grml-screen: Error could not create lockfile! (sleeping for $SLEEP_TIME_)"
+ sleep $SLEEP_TIME_
+fi
+
# now run screen with config
cd $HOME # important for e.g. hardcopy-feature
# do we have a utf8 enabled terminal?