joining multiple PDFs into one

[Chris F.A. Johnson]

On Tue, 15 Nov 2011, Russell Reiter wrote:

> Someone else had posted that: cat file1.pdf > out.pdf cat file2.pdf
>>> out.pdf cat file3.pdf>>out.pdf worked and they were able to see all
> three PDF pages. Before anyone jumps on this I know this is not the
> same as the following.
>
> cat file1.pdf file2.pdf file3.pdf>out.pdf did not work, even though
> the man page says it should.

cat file1.pdf > out.pdf; cat file2.pdf >> out.pdf; cat file3.pdf >> out.pdf

    is exactly the same as

cat file1.pdf file2.pdf file3.pdf > out.pdf

    Both do exactly what the man page says they should.

    Whether is works with any particular type of file depends on the
    file structure, not on the cat command.

-- 
    Chris F.A. Johnson, <http://cfajohnson.com/>
    Author:
    Pro Bash Programming: Scripting the GNU/Linux Shell (2009, Apress)
    Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
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