04-03-2017
Hello Preeti Chandra,
There are 2 things here.
I- Please DO NOT use cat Input_file | sed ...... as sed ....... Input_file, it can read Input_file by itself.
II- To substitute all the occurrences of a string you should use sed 's/old_text/new_text/g with single sed only.
Just try it out and let us know how it goes then.
Thanks,
R. Singh
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