The SORT program is used to sort data into a certain sequence or to merge from 2 to 100 previously sorted input data sets into 1 output data set
This is a only a very small subset of all of the things you can do with DFSORT.
If you're not familiar with DFSORT and DFSORT's ICETOOL, I'd suggest reading through "z/OS DFSORT: Getting Started". It's an excellent tutorial, with lots of examples, that will show you all of the tasks you can perform with DFSORT, DFSORT's ICETOOL and DFSORT Symbols. You can access it online, along with all of the other DFSORT books, from: