UNIX for Dummies Questions & Answers

Hi,

I want to combined 500 .txt files (each file only has one line) to a single txt file (A.txt).

for example,

A1.txt with
12
23
34
45

A2.txt with
56
67
78
89

...etc, so I have A1.txt, A2.txt... , A499.txt, A500.txt

so the results suppose to be A.txt with
12 56 .... (500 columns)
23 67 .... (500 columns)
34 78 .... (500 columns)
45 89 .... (500 columns)

I use "paste A* > A.txt", but it seems that there are too many files to be combined, but unix only allows 12 files to put together.

Are there any other ways to do it?
Thanks a lot~!

use some loop logic.
combine 12 files at a time into one temp file. next 12 files into second temp file and so on.
then combine all these temp file in same way till you get your desired output.