o error message is given, print parameter null or not set. Note: In a non-interactive shell, this will abort the... echo \${$foo:?} one bash: bar: parameter null or not set bash: baz: parameter null or not set
== NOTE ==
The colon (:) in the above ope... occurrence of char in string. If the character is not found: nothing is sent to stdout.
mbfl_string_last stri... occurrence of char in string. If the character is not found: nothing is sent to stdout.
mbfl_string_range str
Testing null strings and unquoted strings,
#+ but not strings and sealing wax, not to mention cabbages and kings . . .
# Using if... # Wrong result.
# Shows $string1 as not null, although it was not initialized.
echo
# Let's try it again.
if [ -... ng1 is quoted.
then
echo "String \"string1\" is not null."
else
echo "String \"string1\" is null.... stands naked.
then
echo "String \"string1\" is not null."
else
echo "String \"string1\" is null.
