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Merge / convert multiple PDF files into one PDF
How could I merge / convert multiple PDF files into one large PDF file?
18 Answers
18
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Reading output of a command into an array in Bash
...acters like *, ?, [...].
To get the output of a command in an array, with one line per element, there are essentially 3 ways:
With Bash≥4 use mapfile—it's the most efficient:
mapfile -t my_array < <( my_command )
Otherwise, a loop reading the output (slower, but safe):
my_array=()
wh...
JPA and Hibernate - Criteria vs. JPQL or HQL
...w why HQL is better than criteria api in certain cases ? I read the end of one blog, but understood nothing. Would appreciate it if you could help. Thanks. Link - javalobby.org/articles/hibernatequery102
– Erran Morad
Jun 10 '14 at 1:23
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What is the difference between atomic and critical in OpenMP?
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The effect on g_qCount is the same, but what's done is different.
An OpenMP critical section is completely general - it can surround any arbitrary block of code. You pay for that generality, however, by incurring significant overhead every time a thread enters and exits...
Batch file to copy files from one folder to another folder
... active data on a server. Now that server is going to be replaced by a new one due to place problem so I need to copy sub folders files from the old server storage folder to new server storage folder. I have below ex:
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Doctrine2: Best way to handle many-to-many with extra columns in reference table
...tself, and then you realize you have 3 objects, linked between them with a one-to-many and many-to-one relation.
http://groups.google.com/group/doctrine-user/browse_thread/thread/d1d87c96052e76f7/436b896e83c10868#436b896e83c10868
Once a relation has data, it's no more a relation !
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Generate all permutations of a list without adjacent equal elements
...ns safety.
The only way that a greedy step introduces a defect is if only one item type remains, in which case there is only one way to continue, and that way is safe. Otherwise, let P be the (safe) prefix just before the step under consideration, let P' be the prefix just after, and let S be an op...
Elegant way to invert a map in Scala
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You can avoid the ._1 stuff while iterating in few ways.
Here's one way. This uses a partial function that covers the one and only case that matters for the map:
Map() ++ (origMap map {case (k,v) => (v,k)})
Here's another way:
import Function.tupled
Map() ++ (origMap map ...
Keep SSH session alive [closed]
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@user271996, why should one restart a daemon for a client-side setting?
– maxschlepzig
Jun 2 '15 at 15:40
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When should one use a 'www' subdomain?
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You should choose one to be canonical mattcutts.com/blog/seo-advice-url-canonicalization
– Andrew Harry
Dec 19 '11 at 22:09
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