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How can you diff two pipelines in Bash?
... filenames like /dev/fd/63 to get a filename that the command can open and read from to actually read from an already-open file descriptor that bash set up before exec'ing the command. (i.e. bash uses pipe(2) before fork, and then dup2 to redirect from the output of quux to an input file descriptor...
How to get error information when HttpWebRequest.GetResponse() fails
...ient would throw an exception when it encounters a 500 error but you could read the response stream and fetch the message of the exception.
So you could catch a WebException which is what will be thrown if a non 200 status code is returned from the server and read its body:
catch (WebException ex)...
First-time database design: am I overengineering? [closed]
...; 3. I still don't know how indexes work, it's something I have planned to read up on. If we ever have the "problem" of reaching a million records there will probably be a budget to hire experienced developers :P Thanks for the insight into different db roles that exist, it's all new to me and very ...
Linear Layout and weight in Android
I always read about this funny weight value in the Android documentations.
Now I want to try it for the first time but it isn't working at all.
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Why shouldn't I use mysql_* functions in PHP?
... PDOException object that can be caught to handle Exception further.
Good read: Connections and Connection management ¶
You can also pass in several driver options as an array to the fourth parameter. I recommend passing the parameter which puts PDO into exception mode. Because some PDO drivers ...
Using column alias in WHERE clause of MySQL query produces an error
...in the comments, using HAVING instead may do the work. Make sure to give a read at this WHERE vs HAVING though.
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Inner join vs Where
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I find the WHERE syntax easier to read than INNER JION - I guess its like Vegemite. Most people in the world probably find it disgusting but kids brought up eating it love it.
– ScottCher
Oct 27 '08 at 18:53
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How can I select random files from a directory in bash?
...a script that uses GNU sort's random option:
ls |sort -R |tail -$N |while read file; do
# Something involving $file, or you can leave
# off the while to just get the filenames
done
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How to Update Multiple Array Elements in mongodb
...pdate each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it replacing the
older one (check "Update if
Current" if you want to ensure
atomic updates)
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What's the meaning of exception code “EXC_I386_GPFLT”?
...verwriting some pointer data with other stuff, or going out of bounds when reading some pointer value.
Another likely causes is unaligned access with an SSE register - in other word, reading a 16-byte SSE register from an address that isn't 16-byte aligned.
There are, as I said, many other possi...