|
function boolVal {
|
|
if (( ! $? )); then
|
|
echo true
|
|
else
|
|
echo false
|
|
fi
|
|
}
|
|
|
|
a=true
|
|
b=false
|
|
printf '%s and %s = %s\n' "$a" "$b" "$("$a" && "$b"; boolVal)"
|
|
printf '%s or %s = %s\n' "$a" "$b" "$("$a" || "$b"; boolVal)"
|
|
printf 'not %s = %s\n' "$a" "$(! "$a"; boolVal)"
|