How about: 
perl -n -e 'if(/Twist 2$/){s/Twist 2//;print;} testresults'

[download]
Because you are going through the file line-by-line (default behaviour when assuming a while loop around the program), just test for the 'Twist 2' string at the end of the line.

In reply to RE: Pattern Matching Problem by mrmick
in thread Pattern Matching Problem by MrDoney

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