nickmcummins - Download data for your desired region from http://www.webgis.com/srtm1.html using
wgetorcurl. - Extract the zip files:
for file in *.zip; do unzip $file; done
- Remove zip files:
rm *.zip
- Build a vrt using gdalbuildvrt:
gdalbuildvrt SRTM1-Region01.vrt *.hgt
