Programming Forums > Script Programming > Bash / Shell Scripting

Phonetic · Nov 28th, 2006, 3:03 AM

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.

(Toggle Plain Text)

echo "enter a word \c"
read aword
aword=`echo "$aword" | tr -s '[:lower:]' '[:upper:]'`

Nov 28th, 2006, 3:03 AM	#1
Phonetic Newbie Join Date: Nov 2006 Posts: 5 Rep Power: 0	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.

Nov 28th, 2006, 3:13 AM	#2
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	tr a-z A-Z, without the classes. Standard input to standard output, so sandwich it in there. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Nov 30th, 2006, 2:21 PM	#3
jim mcnamara Hobbyist Programmer Join Date: Jun 2005 Location: New Mexico Posts: 228 Rep Power: 4	On a POSIX-compliant unix, tr supports POSIX classes -- those [:upper:] things. (Toggle Plain Text) echo "enter a word \c" read aword aword=`echo "$aword" \| tr -s '[:lower:]' '[:upper:]'` echo "enter a word \c" read aword aword=`echo "$aword" \| tr -s '[:lower:]' '[:upper:]'`

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Programming Forums > Script Programming > Bash / Shell Scripting

Translating upper and lowercase