echo line

I have a file of that looks as follows:

foo bar
tom jerry
UNIX Linux

Each word and/or Linux is a different length. How do strip or remove the last character from each line using bash or ksh shell only?

{ 8 comments }

How do I read a file line by line under UNIX using KSH or BASH shell?

{ 15 comments }

How do I read a file line by line using KSH shell scripting under UNIX like operating systems?

{ 15 comments }

Q. I can append text to a file using >> operator but how do I prepend a text to a file? I want the opposit of >> operation?

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