v.external(1grass) on Linux
The text fd1f83475618, as Debian 6.0 (Squeeze) shipped it.
Creates a new vector as a read-only link to OGR layer. Available drivers: ESRI Shapefile,MapInfo File,UK .NTF,SDTS,TIGER,S57,DGN,VRT,REC,Memory,BNA,CSV,GML,GPX,KML,GeoJSON,Interlis 1,Interlis 2,GMT,SQLite,ODBC,PGeo,OGDI,PostgreSQL,MySQL,XPlane,AVCBin,AVCE00,Geoconcept