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Checking if output of a command contains a certain string in a shell script
...d keeps running even after emitting string, in which case using grep -q -- by closing its stdin and exiting after the first instance of string is seen -- can be counterproductive]. (Re: "non-POSIX-compliant", &> is an extension -- see pubs.opengroup.org/onlinepubs/009695399/utilities/… desc...
Why don't self-closing script elements work?
...me as “must not”. This is a guideline (for compatibility, as suggested by the section title), not a rule.
– Konrad Rudolph
Sep 16 '08 at 13:11
46
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Recursively counting files in a Linux directory
...and's standard input.
wc (short for word count) counts newlines, words and bytes on its input (docs).
-l to count just newlines.
Notes:
Replace DIR_NAME with . to execute the command in the current folder.
You can also remove the -type f to include directories (and symlinks) in the count.
It's ...
What is a bank conflict? (Doing Cuda/OpenCL programming)
...everything below: 16)), which are interleaved with a granuity of 32bit (so byte 0-3 are in bank 1, 4-7 in bank 2, ..., 64-69 in bank 1 and so on). For a better visualization it basically looks like this:
Bank | 1 | 2 | 3 |...
Address | 0 1 2 3 | 4 5 6 7 | 8...
Entity Framework 4 - AddObject vs Attach
...e value of the EntityKey is used to update (or delete) the appropriate row by finding its matching ID in the db table.
Furthermore, using the Attach method, you can define relationships between entities that already exist in the ObjectContext but that have not been connected automatically. Basical...
What regex will match every character except comma ',' or semi-colon ';'?
...re using. Most of them have a Split method that takes delimiters and split by them. You might want to use that one with a "normal" (without ^) character class:
[,;]+
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How to use Git and Dropbox together effectively?
...ve access to a server that I can always SSH to, Dropbox takes care of this by syncing in the background (very doing so quickly).
Setup is something like this:
~/project $ git init
~/project $ git add .
~/project $ git commit -m "first commit"
~/project $ cd ~/Dropbox/git
~/Dropbox/git $ git init --...
How do you disable browser Autocomplete on web form field / input tag?
...autocomplete=off, you could also have your form fields names be randomized by the code that generates the page, perhaps by adding some session-specific string to the end of the names.
When the form is submitted, you can strip that part off before processing them on the server side. This would pre...
Make Visual Studio understand CamelCase when hitting Ctrl and cursor keys
..., the following free Extension adds this functionality: Subword Navigation by Olle Westman
(Alternatively, the VSTricks extension includes Sub-word Navigation in its list of nifty features. There is also a different Subword navigation extension created by Lauri Vasama not to be confused with Olle W...
How can I dynamically create a selector at runtime with Objective-C?
...ing around"...
You need to create a function pointer that will be called by your "new" method.. so for a method like [self theMethod:(id)methodArg];, you'd write...
void (^impBlock)(id,id) = ^(id _self, id methodArg) {
[_self doSomethingWith:methodArg];
};
and then you need to generate...