In music notation, da capo al fine is abbreviated "D.C. al fine" and is written just above the staff. It indicates that the piece repeats a second time from the beginning (da capo), but stops at the fine rather than continuing all the way to the end of the piece.
When used on a staff, it looks like this (complete with time signature and a quarter note scale):
/\ fine
---| /----------------------------|---------------------|
|/ | | |
---/------------------------------|---|----|------------|
/| 4 | | | | * |
-/-|/\--------------------|----|--|---|----|---*---|----|
| | | 4 | | | | | * | | |
|--|--|--------|-----|----|----|--|--*--------|----|----|
\ | | | | | * | | | |
--\|_/---------|-----|---*--------|-----------|---------|
| | *
\| -*--
/\ D.C. al fine
---| /----------------------------|---------------------||
|/ | | ||
---/------------*--------------|--|---|-----------------||
/| | * | | | | ||
-/-|/\---------|----|-----*----|--|---|---|----|--------||
| | | | | | * | | | | | ||
|--|--|--------|----|----|--------|--*----|----|---|----||
\ | | | | | * | | ||
--\|_/-------------------|--------|-----------*----|----||
| *
\|