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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...ely easy to reliably obtain exclusive locks without worrying about cleanup etc. There are examples on the man page as to how to use it in a shell script.
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The Concept of 'Hold space' and 'Pattern space' in sed
...en read and the hold space (containing all the previous lines in a reverse order) have been appended to the pattern space, pattern space is printed with p. As you have guessed, the above does exactly what the tac command does -- prints the file in reverse.
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
...ns relies on any other script-internal environment variables (custom PATH, etc.), they probably need to be explicitly exported before launching parallel.
– Brent Bradburn
Jun 4 '13 at 1:35
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Manifest merger failed : uses-sdk:minSdkVersion 14
...d.support:support-v4:+ or any other support libraries (v7, v13, appcompat, etc), anywhere in your project.
I'd assume the problem is v4:+ picks up the release candidate (21.0.0-rc1) latest L release which obviously requires the L SDK.
Edit:
If you need to use the new views (CardView, RecyclerVie...
How are people managing authentication in Go? [closed]
...s logic and requirements.
For example Oauth2, LDAP, local authentication, etc.
My answer assumes you are looking for local authentication which means you manage the user's identities in your application.
The server must expose a set of external API allow users and admins
Managing the accounts and...
How to automatically generate N “distinct” colors?
...ive Green
};
the following is the unsorted kelly colors according to the order above.
the following is the sorted kelly colors according to hues (note that some yellows are not very contrasting)
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.gitignore file, where should I put it in my xcode project?
...some type files which is generated by OS or any other logging, cashing and etc. tools.
Per-repository git ignore: - In this approach your custom rules will be applied to specific git directory in your machine. Local per-repository rules can be added to the .git/info/exclude file in your repository. ...
Sequence contains no matching element
... target.Read = source.Read;
target.ReadRule = source.ReadRule;
// etc
}
That's simpler and more efficient IMO.
Even if you do decide to keep the loop, I have a couple of suggestions:
Get rid of the outer if. You don't need it, as if Count is zero the for loop body will never execute
Us...
Purpose of ESI & EDI registers?
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In addition to the string operations (MOVS/INS/STOS/CMPS/SCASB/W/D/Q etc.) mentioned in the other answers, I wanted to add that there are also more "modern" x86 assembly instructions that implicitly use at least EDI/RDI:
The SSE2 MASKMOVDQU (and the upcoming AVX VMASKMOVDQU) instruction sele...
Parsing JSON array into java.util.List with Gson
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