wxctl

#!/bin/bash
# wxctl is called by wxtoimg at the start and end of every satellite pass.
# This script forwards start and stop commands and recording parameters 
# to the command queue of record_noaa_d.sh
# Only NOAA 15,18, and 19 are supported - any other requests are silently 
# discarded.
# This file should be copied to /usr/local/bin/wxctl so that it can be 
# found by wxtoimg

CMD_FIFO=/tmp/record_noaa_cmd
LOGFILE=/tmp/wxctl.log

# Check to see if CMD_FIFO exists
if [[ ! -p $CMD_FIFO ]]; then
  echo "ERROR: Command CMD_FIFO not found" >> $LOGFILE
  exit 1
fi

# Replace spaces with - in the satellite name to allow it to be passed as single parameter
case "$1" in
'NOAA 15' )
  # Record from NOAA 15
  echo $(date -u +"%Y%^b%d-%H%M%S%Z")": Recording "$1" on "$2 >> $LOGFILE
  echo "start NOAA-15 137.620M" > $CMD_FIFO
;;
'NOAA 18' )
  # Record from NOAA 18
  echo $(date -u +"%Y%^b%d-%H%M%S%Z")": Recording "$1" on "$2 >> $LOGFILE
  echo "start NOAA-18 137.9125M" > $CMD_FIFO
;;
'NOAA 19' )
  # Record from NOAA 19
  echo $(date -u +"%Y%^b%d-%H%M%S%Z")": Recording "$1" on "$2 >> $LOGFILE
  echo "start NOAA-19 137.100M" > $CMD_FIFO
;;
* )
  # Stop recording
  echo $(date -u +"%Y%^b%d-%H%M%S%Z")": Stopping" >> $LOGFILE
  echo "stop" > $CMD_FIFO
;;
esac

exit 0