# VSAM commands - IBM Mainframe

In this chapter, we will explore a few more VSAM commands that are commonly used. We will also look at some additional features of VSAM. We will start with three simple commands DELETE, ALTER and VERIFY. DELETE is used to delete both VSAM and non-VSAM files. ALTER changes the characteristics of an existing VSAM object and VERIFY can close an improperly closed VSAM data set.