These are the commands which modify a string. Note that none of these modify the string in place.
In all cases a new string is returned. string tolower string Returns string with all the letters converted from upper to lower case. string toupper string Returns string with all the letters converted from lower to upper case. string trim string ?trimChars?
Returns string with all occurrences of trimChars removed from both ends. By default trimChars are whitespace (spaces, tabs, newlines).
Note that...
