DataMystic

I need to ultimately create two text files from a single text file, One the result of an extraction and one the result of a remove:

2 Examples:


Input:
1|1001|dog|1238094710219381098
2|1001|2398479872934872938
3|1001|0892039420938029384
1|1002|cat|23409230498203948
2|1002|23094203480293840924 ...

I need help with the following line extractions:

Example of text -

1|1001|dog|1238094710219381098
2|1001|2398479872934872938
3|1001|0892039420938029384
1|1002|cat|23409230498203948
2|1002|23094203480293840924

where "dog", extract (or remove) that line and all following lines that match the ...