I think you could make the solution more general by incrementing what you find in the pattern although this would break if the major version changed or they got to SW_V02.100. 
perl -pi.bak -e 's/(SW_V02\.)(\d\d)/$1 . sprintf("%02d", $2 + 1)/e;' f
+ilename.txt

[download]
You may need to change my quotes if not working on Unix.

Cheers,

JohnGG

In reply to Re^2: Modifying File Contents by johngg
in thread Modifying File Contents by ramthen

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