I have completed my task as per instructions, but I see its failed.
The reason it shows is below.

Task Status - Failed

following pattern not deleted correctly in /home/BSD_DELETE.txt on stapp02

But if you see below output, it shows following word is not present in BSD_DELETE.txt.
Please check on it.

[[email protected] home]# cat BSD_DELETE.txt |grep -i following
[[email protected] home]# pwd
[[email protected] home]# cat BSD_REPLACE.txt |grep -i following
[[email protected] home]# cat BSD_REPLACE.txt |grep -i from

You must read carefully the question. it’s mentionned to be careful to the case of characters, and they didn’t mention that you need to convert upper and lower case, so you don’t need to -i