Script to download map tiles from Open Street Maps for offline rendering

OSM_map_tiles_download.sh

#!/bin/sh

# Script to download map tiles from Open Street Maps 
# Author: Farhan Ar Rafi

# number of tiles in x and y direction
# this will be 2^Z
N=7
# sleep time between downloads
SLEEP=3
# zoom level
Z=3

for X in $(seq 0 $N);
do
	for Y in $(seq 0 $N);
    do
	URL=http://a.tile.osm.org/$Z/$X/$Y.png;
	FILE=$X$Y.png;
	LOGS=download.log;
        echo wget $URL -O $FILE -o $LOGS;
	wget $URL -O $FILE -a $LOGS
	sleep $SLEEP;
    done
done