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in reply to Concatenate every 5 lines of input with a comma.

UPDATE: Oh, sorry, I'd only read the subject. I don't understand the body of your post.

Original:

perl -pe's/$/,/ if not$.%5' file

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Re^2: Concatenate every 5 lines of input with a comma.
by jwkrahn (Abbot) on Jul 09, 2009 at 21:06 UTC

    Not even close: 

    $ seq 20 | perl -pe's/$/,/ if not$.%5'
1
2
3
4
5,
6
7
8
9
10,
11
12
13
14
15,
16
17
18
19
20,

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