sidprocess

#!/bin/bash
convtime()
{
	converted_time=ERROR
	good=nope
	case "$intime" in
	[12][0-9][0-9][0-9]-[01][0-9]-[0-3][0-9]\ [0-2][0-9]:[0-5][0-9])
		good=yup
		;;
	*)
	converted_time=ERROR
	;;

	esac
	TZ=UTC0
	export TZ
	if [ $good = yup ]
	then
	python >tmp$$ <<!EOF!
import time
print int(time.mktime(time.strptime('$intime', "%Y-%m-%d %H:%M")))
!EOF!
	converted_time=`cat tmp$$`
	rm -f tmp$$
	fi
}

BTIM=90
SRATE=8
OUTFILE=""
files=""
ST_TIME=0
EN_TIME=0
while [ "@@" != "@$1@" ]; do
	case "$1" in
		-b|-btime)
			BTIM=$2
			shift 2
		;;
		-s|-srate)
			SRATE=$2
			shift 2
			;;
		-f|-out)
			OUTFILE=$2
			shift 2
			;;
		
		-h|-help)
			echo "Usage: sidprocess [options] files"
			echo "  Options:"
			cat <<!EOF!
       -s|-srate   set sample rate (in Hz) of input data: default is 8
       -f|-out     set output filename: default is 'channel_output'
       -b|-btime   set averaging period: default is 90
       -start      set starting time of processing: YYYY-MM-DD HH:MM
       -end        set ending time of processing: YYYY-MM-DD HH:MM
!EOF!
			exit
			;;
			
		-start)
			intime="$2"
			convtime
			if [ $converted_time = ERROR ]
			then
				echo Invalid time format: must be YYYY-MM-DD HH:MM
				exit
			fi
			shift 2
			ST_TIME=$converted_time
			;;
			
		-end)
			intime="$2"
			convtime
			if [ $converted_time = ERROR ]
			then
				echo Invalid time foramt: must be YYYY-MM-DD HH:MM
			fi
			shift 2
			EN_TIME=$converted_time
			;;
		
		-*)
			echo Unknown option: $1
			exit
			;;
		*) 
		files="$files $1"
		shift
		;;
	esac
done
if [ "@@" = "@$files@" ]
then
	echo "You must specify at least one file for processing"
	exit
fi
if [ "@$OUTFILE@" != "@@" -a "$OUTFILE" != "-" ]
then
	awk -f $HOME/bin/sidprocess_new.awk \
	BTIM=$BTIM SRATE=$SRATE ST_TIME=$ST_TIME EN_TIME=$EN_TIME $files >$OUTFILE
else
	awk -f $HOME/bin/sidprocess_new.awk \
	BTIM=$BTIM SRATE=$SRATE ST_TIME=$ST_TIME EN_TIME=$EN_TIME $files
fi