sed & cut command issues

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http://www.unix.com – Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: After using the egrep command to pull certain lines from the asg5f1 (creating the asg5f1c file), I am required to use the sed command in order to change all tabs in the asg5f1c file to a colon, and dump the results into a temporary file. As I understand it, in the asg5f1c file <tab> is a delimiter, and I believe I am being asked to change the delimiter from a tab to a colon. Below is an example of wh (HowTos)