TR(1) Minix Programmer's Manual TR(1) NAME tr - translate character codes SYNOPSIS tr [-cds] [string1] [string2] OPTIONS -c Complement the set of characters in string1 -d Delete all characters specified in string1 -s Squeeze all runs of characters in string1 to one character EXAMPLES tr '[A-Z]' '[a-z]' y # Convert upper case to lower case tr -d '0123456789' f2 # Delete all digits from f1 DESCRIPTION Tr performs simple character translation. When no flag is specified, each character in string1 is mapped onto the corresponding character in string2 . 1