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BAT file: Open new cmd window and execute a command in there
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This is not very easy.
The best approach is to have the part of your script that you want to be executed in a "new window" to be in a separate .bat file. This might be impractical if e.g. you need a lot of state from the rest of your script (variables, etc). One option is to pass any values yo...
rvm installation not working: “RVM is not a function”
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You need to run the following
$ source ~/.rvm/scripts/rvm
then run this
$ type rvm | head -n 1
and if you get
rvm is a function
the problem is solved.
You also need to run user$ rvm requirements to see dependency requirements for your operating system
Source: h...
ASP.NET MVC controller actions that return JSON or partial html
...ew AjaxOptions {OnSuccess="somemethod"}) %>
SomeMethod would be a javascript method that then evaluates the Json object returned.
If you want to return a plain string, you can just use the ContentResult:
public ActionResult SomeActionMethod() {
return Content("hello world!");
}
ContentR...
How to have jQuery restrict file types on upload?
... checking with PHP already. I am running my submit button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
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How do you version your database schema? [closed]
...n be rolled back without losing data or functionality.
I have a migration script that contains statements that creates tables and columns if they don't exist yet and fills them with data.
The migration script runs whenever the production code is updated and after new installs.
When I would like t...
How to encode the filename parameter of Content-Disposition header in HTTP?
... one you want, you don't need any extra headers!
This trick works:
/real_script.php/fake_filename.doc
And if your server supports URL rewriting (e.g. mod_rewrite in Apache) then you can fully hide the script part.
Characters in URLs should be in UTF-8, urlencoded byte-by-byte:
/mot%C3%B6rhead ...
How many levels of pointers can we have?
... I couldn't get more than 98242 when I tried it. (I did the script in Python, doubling the number of * until I got one that failed, and the preceding one that passed; I then did a binary search over that interval for the first one that failed. The whole test took less than a second t...
How to set environment variables from within package.json
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Set the environment variable in the script command:
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"scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
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Then use process.env.NODE_ENV in your app.
Note: This is for Mac & Linux only. For Windows refer to the co...
Disable messages upon loading a package
...ssages are printed. This is ordinarily fine, but since the output of my R script is being used for further analysis I want to completely disable all of this output. How do I do that? Furthermore, I'd prefer to do it without having to modify ROCR at all, so that future users of this script don't h...
Exit codes in Python
I got a message saying script xyz.py returned exit code 0 . What does this mean?
13 Answers
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