E
The task is to make sure that the characters entered in both variables contain letters only. To do t... ment. Here's how it could be called.
echo -n "Enter the filename :"
read FILENAME
if is_upper $FI... he field.
Suppose you had a script where the user enters data into a name field via an interactive screen...
# !/bin/sh
# test_name
while :
do
echo -n "Enter your FIRST name :"
read NAME
if check_lengt
