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How to hide command output in Bash
...commands may not handle a closed file descriptor particularly well ("write error: Bad file descriptor"), which is why the better solution may be to...
Redirect output to /dev/null, which accepts all output and does nothing with it. It looks like this:
your_command "Hello?" > /dev/null
For outp...
Disable XML validation in Eclipse
...XML Validator
Right-click on the project and select Validate to make the errors disappear.
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What is a “batch”, and why is GO used?
...t will rollback all GO's. And if in one GO in the middle You will get some error, and in the end You will do COMMIT, all GO without error will be commited. Is kind of tricky.
– T.Z.
Jun 7 '13 at 7:19
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How do I compute derivative using Numpy?
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Finite differences require no external tools but are prone to numerical error and, if you're in a multivariate situation, can take a while.
Symbolic differentiation is ideal if your problem is simple enough. Symbolic methods are getting quite robust these days. SymPy is an excellent project for...
Truncate all tables in a MySQL database in one command?
...e Query Result to truncate tables
Note:
may be you will get this error:
ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails
That happens if there are tables with foreign keys references to the table you are trying to drop/truncate.
Before truncating...
Is there a tool to convert JavaScript files to TypeScript [closed]
...is just wrong. The following code is correct in JavaScript, but creates an error in TypeScript:
var data={x:5, y:6};
data.z=5;
You can get the dynamic behaviour of JavaScript by declaring data as "ambient"
var data:any={x:5, y:6};
data.z=5;
Now this will work in TypeScript, too. Nevertheless...
AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
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I had a similar issue with my own proxy to bypass CORS and I got the same error of POST->OPTION in Chrome. It was the Authorization header in my case ("x-li-format" and "X-UserName" here in your case.) I ended up passing it in a dummy format (e.g. AuthorizatinJack in GET) and I changed the cod...
Git error: “Host Key Verification Failed” when connecting to remote repository
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As I answered previously in Cloning git repo causes error - Host key verification failed. fatal: The remote end hung up unexpectedly, add the GitHub to the list of authorized hosts:
ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts
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How do I use the CONCAT function in SQL Server 2008 R2?
... for this function . But when I use this function, it gives the following error:
7 Answers
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Argument list too long error for rm, cp, mv commands
...st in chunks? @ wooledge
execve(2) - Linux man page (search for ARG_MAX) ;
Error: Argument list too long @ Debian's wiki ;
Why do I get “/bin/sh: Argument list too long” when passing quoted arguments? @ SuperUser
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