Alphabetical help. Post: 302548783

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Homework and Emergencies Homework & Coursework Questions Alphabetical help. Post 302548783 by Ren_kun on Friday 19th of August 2011 09:18:09 AM

08-19-2011

Registered User

so can i have something like this?

Code:

if [[ "$letter" < Z  || "$letter" == Z && "$letter" > A || "$letter" == A ]]; then

EDIT:

Code:

"3")
clear
echo Enter capitol alphabetical letters one at a time and press 0 to finish
letter="Z"
if [[ "$letter" < Z || "$letter" == Z ]] && [[ "$letter" > A || "$letter" == A ]]; then
        while [[ "$letter" == Z || "$letter" < Z ]] && [[ "$letter" > A || "$letter" == A ]] && [[ "$letter" != 0 ]]; do
        read letter2
                if [[ $letter2 < $letter ]]; then
                letter=letter2
                else
                break
                fi
        break
        done
elif [ "$letter2" == 0 ]; then
echo Lowest letter is $letter
else
echo "Invalid input. Please enter A-Z (capital) one at a time finalised by a 0"
fi
;;

ive changed the code a bit more to make it like this. No errors occurs. However when i run the script it will ask for input and afterwards break out of all loops and end the program returning to the menu. What have i done wrong?

Last edited by Ren_kun; 08-19-2011 at 10:45 AM..

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LEARN ABOUT LINUX

toupper_l

TOUPPER(3)						     Linux Programmer's Manual							TOUPPER(3)

NAME

       toupper, tolower - convert letter to upper or lower case

SYNOPSIS

       #include <ctype.h>

       int toupper(int c);
       int tolower(int c);

DESCRIPTION

       toupper() converts the letter c to upper case, if possible.

       tolower() converts the letter c to lower case, if possible.

       If c is not an unsigned char value, or EOF, the behavior of these functions is undefined.

RETURN VALUE

       The value returned is that of the converted letter, or c if the conversion was not possible.

CONFORMING TO

       C89, C99, 4.3BSD.

BUGS

       The  details  of  what constitutes an uppercase or lowercase letter depend on the current locale.  For example, the default "C" locale does
       not know about umlauts, so no conversion is done for them.

       In some non-English locales, there are lowercase letters with no corresponding uppercase equivalent; the German sharp s is one example.

SEE ALSO

       isalpha(3), setlocale(3), towlower(3), towupper(3), locale(7)

COLOPHON

       This page is part of release 3.27 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    1993-04-04								TOUPPER(3)

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