in reply to Regex to convert non-printable to printable char

Replacing all these unprintable characters by the same printable character (in this case a full stop): use the substitution operator
Note the g at the end: it means it will do the replacement many times, i.e. for all the unprintable characters in $string

Added s. Thanks to AnomalousMonk keen eyes.


A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

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