Ciao guys, I'm trying to solve a problem with some text I have. I have processed two text files and now I have something like this: 

| wordF1     | percentageF1 | wordF2       | percentageF2 |
|------------+--------------+--------------+--------------|
| politici   |       0.0489 | politici     |       0.0295 |
| referendum |       0.0238 | consenso     |       0.0126 |
| verità     |       0.0198 | referendum   |      0.00654 |
| scandalo   |       0.0112 | verità       |      0.00526 |
| vergogna   |      0.00723 | tradizionali |      0.00343 |
| corrotto   |      0.00439 | tradizione   |      0.00266 |
| scandali   |      0.00394 | tradizioni   |      0.00234 |
| consenso   |      0.00373 | tradizionale |       0.0022 |
| corrotti   |      0.00332 | scandalo     |      0.00142 |
| propaganda |       0.0027 | vergogna     |      0.00131 |
|------------+--------------+--------------+--------------|

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What I am trying to do is to align the words (so I understand I should do some string compairison but then I don't know how) by keeping file1 as reference: this means that if a word is present in file1 but not in file2 then the whole raw should be deleted. Once this is done I would like to compute the differences of the percentages (f1-f2).

At the end I would like something like this: 

| wordF1     | wordF2     | difference |
|------------+------------+------------|
| politici   | politici   |       +0.5 |
| referendum | referendum |     +0.126 |
| verità     | verità     |     +0.006 |
| ...        | ...        | ...        |
|------------+------------+------------|

[download]

I was trying to do this in awk but after a lot of tryings I gave up. If somebody could help I'd be very happy.

One of Crete's own prophets has said it: 'Cretans are always liars, evil brutes, lazy gluttons'.
He has surely told the truth.

In reply to Aligning text and then perfom calculations by epimenidecretese

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