Unix - To lower/upper case

To lower/upper case

If you want to transform a string to upper or lower case, you can do so with the unix tr command. Here's a simple example.
#!/bin/sh

STR_ORIGINAL=aBcDeFgHiJkLmNoP
STR_UPPER=`echo $STR_ORIGINAL | tr a-z A-Z`
STR_LOWER=`echo $STR_ORIGINAL | tr A-Z a-z`

echo "Original: $STR_ORIGINAL"
echo "Upper   : $STR_UPPER"
echo "Lower   : $STR_LOWER"