joining multiple PDFs into one

Russ rreiter91-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org
Tue Nov 15 17:37:47 UTC 2011


 Everything is affected by the variables set by the shell when it is started. When the shell allows clobbering, existing file data is overwritten on cat something > somefile, when it doesn't, existing data is preserved. 

Yanni Chiu <yanni at rogers.com> wrote:

>How does noclobber affect what 'cat' does with its arguments?
>
>On 15/11/11 11:56 AM, Russ wrote:
>> That works only if noclobber is set for the shell, otherwise it is clobbered.
>>
>> Yanni Chiu<yanni at rogers.com>  wrote:
>>
>>> On 15/11/11 11:28 AM, Russ wrote:
>>>> The command is cat. It is the operator>   or>>   which controls whether or not existing data is preserved. Thats why he could only see the last page when he used>
>>>> Each new page overwrote the previous one.
>>>
>>> The commands are equivalent. Just open a window and try:
>>>
>>> $ echo hello > f
>>> $ cat f f f > f3
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