Re: Printing lots of pages skips a few
Greg Wooledge <greg@wooledge.org> writes:
> On Tue, Feb 01, 2022 at 03:04:06PM +0530, Pankaj Jangid wrote:
>> I tried to print ~40 pages using the following combination of commands:
>>
>> find . -name "pref***.pdf" | xargs lp
>>
>> The result was that a couple of pages were missed.
>
> That command is fundamentally broken. It will fail if any of the
> matching filenames contain whitespace, single quotes or double quotes.
>
> A correct version would be:
>
> find . -name "pref*.pdf" -exec lp {} +
>
> That's the preferred one. If you're really old-fashioned and just cannot
> live without xargs, the first thing you must realize is that POSIX xargs
> is fundamentally incapable of doing this correctly. GNU xargs has a -0
> extension, though, which makes it possible:
>
> find . -name "pref*.pdf" -print0 | xargs -0 lp
>
> That one is acceptable, albeit longer, less efficient and less portable.
Thanks for this brief course, Greg. I really liked it.
In my case though, I had verified that the output of find is okay for
xargs. Then I added | xargs lp.
But could this be cause of missing page. The output of find is:
--8<---------------cut here---------------start------------->8---
2018/letters/060718I049905433.pdf
2018/letters/250518I049904099.pdf
2018/letters/150918I049901510.pdf
2018/letters/180518I049903135.pdf
2018/letters/180518I049902524.pdf
2018/letters/191018I049905432.pdf
2018/letters/300718I049902173.pdf
2018/letters/141218I049903816.pdf
2018/letters/261018I049903737.pdf
2018/letters/290618I049904628.pdf
2018/letters/190718I049902138.pdf
2018/letters/230718I049900093.pdf
2018/letters/030818I049903843.pdf
2018/letters/190118I049901374.pdf
2018/letters/150618I049903232.pdf
2018/letters/281218I049903776.pdf
2018/letters/190118I049901373.pdf
2018/letters/240818I049904062.pdf
2018/letters/121218I049903419.pdf
2018/letters/201118I049900883.pdf
2018/letters/021118I049904149.pdf
2018/letters/111018I049901537.pdf
2018/letters/270718I049903199.pdf
2018/letters/211218I049904184.pdf
2018/letters/180518I049902534.pdf
2018/letters/261118I049905674.pdf
2018/letters/210918I049902234.pdf
2018/letters/210918I049906208.pdf
2018/letters/230818I049902830.pdf
2018/letters/150518I049903258.pdf
2018/letters/261018I049903715.pdf
2018/letters/100918I049902331.pdf
2018/letters/180818I049904319.pdf
2018/letters/110518I049903217.pdf
2018/letters/290118I049905290.pdf
2018/letters/121018I049903705.pdf
2018/letters/170518I049901548.pdf
2018/letters/180818I049904094.pdf
2018/letters/191218I049901286.pdf
2018/letters/101018I049905261.pdf
2018/letters/021118I049904059.pdf
2018/letters/060118I049902467.pdf
2018/letters/150618I049903254.pdf
2018/letters/110518I049903022.pdf
2018/letters/270718I049903443.pdf
2018/letters/240818I049904852.pdf
2018/letters/210918I049906209.pdf
2018/letters/300518I049903175.pdf
2018/letters/280918I049901364.pdf
2018/letters/140918I049906491.pdf
2018/letters/010618I049902892.pdf
2018/letters/060618I049904019.pdf
2018/letters/070918I049903663.pdf
2018/letters/301118I049903918.pdf
2018/letters/261018I049901520.pdf
--8<---------------cut here---------------end--------------->8---
six of them were not printed.
Regards ~Pankaj
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