Shell Programming and Scripting

Hello,

I have searched forum trying to find a solution to my problem, but could not find anything or I did not understand the examples....

I should say, I am very inexperienced with text processing.

I have a text file with approx 60k lines in it.
I need to merge lines based on the number on the end of the "master line".

Example1:

Code:

Word|1
(1)|Wordel|One Word

So, here I need to delete one pipe character and number 1 after the word 'Word' and merge first line with second line. Delete number 1 and this "(" and this ")" characters. Result should look like this:

Code:

Word|Wordel|One Word

Example 2:

Code:

Eye|4
(1)|Human Eye|Animal Eye
(2)|My Eye|Your Eye|His Eye|Her Eye
(3)|Second Eye|Third Eye
(4)|So Much About Eye

Here I need to delete one pipe character and number 4 after the word 'Eye' and merge first line with four following lines. Delete number 1 and 2 and 3 and 4 and this "(" and this ")" characters. Result should look like this:

Code:

Eye|Human Eye|Animal Eye|My Eye|Your Eye|His Eye|Her Eye|Second Eye|Third Eye|So Much About Eye

So, if the txt file looks like this before processing:

Code:

Word|1
(1)|Wordel|One Word
Eye|4
(1)|Human Eye|Animal Eye
(2)|My Eye|Your Eye|His Eye|Her Eye
(3)|Second Eye|Third Eye
(4)|So Much About Eye

I need it look like this after processing:

Code:

Word|Wordel|One Word
Eye|Human Eye|Animal Eye|My Eye|Your Eye|His Eye|Her Eye|Second Eye|Third Eye|So Much About Eye

Could somebody help me with this please?