Line 1 This is a sed tutorial
Line 2 Microsoft is a software company
Line 3 regexp explored
Line 4 this is line 4
Line 5 this is line 5
Line 6 this is line 6
Line 7 this is line 7
Line 8 IBM is a Hardware company
Line 9 This is an example
Line 10 sed tutorial
Line 11 for test
Line 12 sed tutorial
Line 13 for example

