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Getting a 'source: not found' error when using source in a bash script
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File must be executable: chmod +x filename.sh
– Randy
Nov 14 '17 at 9:13
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NSLog with CGPoint data
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First, you’d need to build the FindAlignment.c file as an iOS app and run it on a device (not simulator). Then, copy the result into a new #elif block before the #else at line 172 in JAValueToString.m. If this doesn’t work, additional debugging will be required. I can...
find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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How many files can I put in a directory?
Does it matter how many files I keep in a single directory? If so, how many files in a directory is too many, and what are the impacts of having too many files? (This is on a Linux server.)
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postgresql: INSERT INTO … (SELECT * …)
...te database and fetch result. For example:
psql dbtest
CREATE TABLE tblB (id serial, time integer);
INSERT INTO tblB (time) VALUES (5000), (2000);
psql postgres
CREATE TABLE tblA (id serial, time integer);
INSERT INTO tblA
SELECT id, time
FROM dblink('dbname=dbtest', 'SELECT id, time FRO...
SVN: Is there a way to mark a file as “do not commit”?
With TortoiseSVN, I can move a file into the ignore-on-commit changelist, so that when I commit a whole tree, changes to that file do not get committed.
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What is the meaning of CTOR?
In a lot of C# files I save regions tags(?) that are named CTOR or ctor. What's the meaning of ctor? Why is such a region called ctor?
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How to convert integer timestamp to Python datetime
I have a data file containing timestamps like "1331856000000". Unfortunately, I don't have a lot of documentation for the format, so I'm not sure how the timestamp is formatted. I've tried Python's standard datetime.fromordinal() and datetime.fromtimestamp() and a few others, but nothing matches...
Read/write files within a Linux kernel module
I know all the discussions about why one should not read/write files from kernel, instead how to use /proc or netlink to do that. I want to read/write anyway. I have also read
Driving Me Nuts - Things You Never Should Do in the Kernel .
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What is the meaning of “vnd” in MIME types?
...ogle = like the vendor of android, then no. You could make your own custom file and give it let's say application/vnd.igor.test mime type, and your app can listen to it. It doesn't matter what you have after "vnd.", just make it somehow to prevent "collisions" with other "igors" if you know what I m...