Quick question, assume the following if-statement
if dis'n'dat ; then
some command here
else
if dat'n'dis
some other command
fi
fi
could i change this using elif to following?
if dis'n'dat ; then
some command
elif dat'n'dis ; then
some other command
fi
despite beeing new to programming, the if-else-fi-statements i do understand but i never found an answer which explained elif in a way i would understand.
An elif idiom is very similar to the structure of a case statement.
Mainly: Only one of the matching cases is selected.
This:
if test1; then
code for test1 being true.
elif test2; then
code for test2 being true.
elif test3; then
code for test3 being true.
else
code for all tests above being false.
fi
Will match only one of the matching test.
The difference with case is that in a case statement what is being tested are some patterns while in a elif statement several different tests may be used.
Yes, your re-write using elif is the same as your original code block using a nested 'if'.
Elif exists exactly so that you don't have to nest a new 'if' inside 'else'. I think that's probably why they call it 'elif'; it's a conglomeration of else and if.
