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Thank you so much for the advice.

Dear all,

I have encountered some problem here. I prompt the user for input and store it into a data file, eg. key in name and marks so the data file will look like this
andrew 80
...

Thank you so much pravin27. You save me from the trouble.

Dear all,

I have some problem here. I want to detect the differences between two text files and count the number of differences between them.

Such as file1.txt i have : I am new in perl.
and...

Wow. that's wonderful. it works great for me. thank you so much ygemici

Dear all,

I am new to unix and i have some problem over here
Is there any way to replace few words in a text file using sed command?

Let say i want to replace "I into He" "love into hate" and...

as the title, how can i allow a user to key in one's name, birthday and email address and save it into a specific file i have created earlier?

thank you so much for any reply.