Programming Forums - Translating upper and lowercase

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Phonetic

Nov 28th, 2006 3:03 AM

Translating upper and lowercase

Hey there I was wondering how to make it so that whenever someone enters a variable that i can have that variable universal so I dont have to worry about "RANDOM" or "random" being entered and they're both read the same way.

I remember seeing a simple tr [:upper:] [:lower:] command, or something like that, but I can't find an example or explanation of the statement anywhere.

Anyway, help is always appreciated. Thanks for the time spent reading this.

DaWei

Nov 28th, 2006 3:13 AM

tr a-z A-Z, without the classes. Standard input to standard output, so sandwich it in there.

jim mcnamara

Nov 30th, 2006 2:21 PM

On a POSIX-compliant unix, tr supports POSIX classes -- those [:upper:] things.

echo "enter a word \c"

read aword

aword=`echo "$aword" | tr -s '[:lower:]' '[:upper:]'`

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