For some debugging purpose, I need to comment out SPECIALNET sections or part of SPECIALNET sections.
The tool is Cadence. However, I notice there are tens of thousands of lines in my DEF for one special net. What is the best way to comment out a range of lines in DEF file?
Some tools have an option like -skip or -section for read_def commands which can help you read-or-skip only those sections from the def. or either manual or awk/sed/vim
Yes with -noSpecialNet you will comment all Special nets in innovus, but if you want to comment out some of the special nets, as it is in the question, you can use awk/grep ... as Sam wrote.
You can try something with defOut -selected as well. But probably best way is an external tool.