$line =~ s/(SUM.*)(..)/$1/
This does not seem to meet jalopez453's requirement. The strings 'SUMx' and 'SUM' both contain the substring 'SUM' and so should truncate to 'SU' and 'S' respectively, but do not.

Also, I don't understand how the sequence of operations 

  DB<1> $_ = 'abcSUXcdexx'

  DB<2> s/(SUM.*)(..)/$1/

  DB<3> p
abcSUMcde

[download]
comes about. A typo?

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: Trim Two Characters On Line by AnomalousMonk
in thread Trim Two Characters On Line by jalopez453

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