Hi Nikos yes. i want to avoid using "g.copy + v.db.dropcol". the problem is, I have too much unnecessery column after all Gis operations. such as a_a_cat, a_b_cat and so on... gutle -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Copy-a-vectormap-tp5337372p5337607.html Sent from the Grass - Users mailing list archive at Nabble.com.