Help me a scrip readfile ( read line by line and split by | or ,)

[cucaibap]

EX: i have file txt , more line and an line more string
A|B|C
A1|B1|C1
A2|b2|C2
...........
to 1000 line
====help me scrip get tring. A
, B, C, to line 1000
A1000|B1000|C1000