#!/bin/bash
# Usage: numLines.sh [--page pageNumOneBased] frt-file

PAGENUM="";
if [ "$1" = "--page" ]; then
	shift
	PAGENUM=$1
	shift
fi

#cat $1 | jq '.pages[] | select(.numLines < 20) | {numLines: .numLines, page: .page}'
if [ "$PAGENUM" != "" ]; then
	cat $1 | jq ".pages[] | select(.page == $PAGENUM) | {numLines: .numLines, page: .page}"
else
	cat $1 | jq '.pages[] | {numLines: .numLines, page: .page}'
fi
exit $?