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Add option to use SCREEN instead of X for remote console #81

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Add option to use SCREEN instead of X for remote console #81

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e149e16
Trivvial issue with dw-start.sh, missing a $LOGFILE
Jan 17, 2017
e863b21
Added in ability to use SCREEN instead of X for those of us who use
Jan 17, 2017
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58 changes: 47 additions & 11 deletions dw-start.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,19 +15,32 @@
# Some adjustments might be needed for other Linux variations.
#

#
# For normal operation as TNC, digipeater, IGate, etc.
# Print audio statistics each 100 seconds for troubleshooting.
#

DWCMD="direwolf -a 100"

#
# Set the logfile location
#

LOGFILE=/tmp/dw-start.log

#
# When running from cron, we have a very minimal environment
# including PATH=/usr/bin:/bin.
#

export PATH=/usr/local/bin:$PATH

# First wait a little while in case we just rebooted
# and the desktop hasn't started up yet.
#
# If we are going to use screen, we put our screen binary in
# the USESCREEN variable, otherwise, set it to 0

USESCREEN=/usr/bin/screen

sleep 30
LOGFILE=/tmp/dw-start.log

#
# Nothing to do if it is already running.
Expand All @@ -41,6 +54,35 @@ then
exit
fi

# First wait a little while in case we just rebooted
# and the desktop hasn't started up yet.
#

sleep 30

#
# If we are going the SCREEN route, then we need to
# see if we have a session open and if not, open it.
#
if [ -x $USESCREEN ]
then

# If there is no screen running, then we need one to attach to
#
if screen -list | awk '{print $1}' | grep -q "direwolf$"; then
echo "screen direwolf already exists" >> $LOGFILE
else
echo "creating direwolf screen session" >> $LOGFILE
screen -d -m -S direwolf
fi
sleep 1

screen -S direwolf -X screen -t Direwolf $DWCMD
exit 0

fi


#
# In my case, the Raspberry Pi is not connected to a monitor.
# I access it remotely using VNC as described here:
Expand All @@ -50,7 +92,7 @@ fi
# Otherwise default to :0.
#

date >> /tmp/dw-start.log
date >> $LOGFILE

export DISPLAY=":0"

Expand All @@ -65,12 +107,6 @@ echo "DISPLAY=$DISPLAY" >> $LOGFILE

echo "Start up application." >> $LOGFILE

#
# For normal operation as TNC, digipeater, IGate, etc.
# Print audio statistics each 100 seconds for troubleshooting.
#

DWCMD="direwolf -a 100"

# Alternative for running with SDR receiver.
# Piping one application into another makes it a little more complicated.
Expand Down