ssume that the unavailability of a program at the time of its execution is a fatal error. So if we need ... you have forgotten the person's full name? Many a time I have seen users locking up a process, but their... need to convert text from lower to upper case sometimes, for example to create directories in a filesyst... tion str_to_upper does a case conversion, but sometimes you only need to know if a string is upper case
Let's try it again.
if [ -n "$string1" ] # This time, $string1 is quoted.
then
echo "String \"string... est brackets!
echo
if [ $string1 ] # This time, $string1 stands naked.
then
echo "String \"str
