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What is the at sign (@) in a batch file and what does it do?
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At symbol - @
The @ symbol tells the command processor to be less verbose; to only show the output of the command without showing it being executed or any prompts associated with the execution. When used it is prepended to the beginning of the command, it is not nec...
TFS Get Specific Version into separate folder
...trol. We've just gotten in a bug report for an older version of the code, and I need to pull down that version of code to test it out. My first thought would be to "Get Specific Version" to pull down the code, but I'd rather not get that version into my current workspace directory.
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What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
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Expand lets you specify whether you want to create the destination path in full (e.g: /path/missing1/missing2), or only create the last directory when its parent exists (/path/existing/missing).
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Using Rails serialize to save hash to database
...wrong, :text
end
Then Rails will properly convert it into YAML for you (and perform proper serialization). Strings fields are limited in size and will only hold especially-small values.
share
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i...
Understanding keystore, certificates and alias
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The keystore file generated by Keytool stores pairs of private and public keys. Each pair or entry stored in the keystore is refered by a unique alias. In brief:
Keystore entry = private + public key
pair = identified by an alias
The keystore protects each private key with its in...
How do I change the default author and committer in the Eclipse Git plugin?
I am using the Git plugin for Eclipse. I have several authors and committers which are displayed when I start typing in those fields.
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Create module variables in Ruby
...ports class variables in modules, so you can use class variables directly, and not some proxy or pseudo-class-variables:
module Site
@@name = "StackOverflow"
def self.setName(value)
@@name = value
end
def self.name
@@name
end
end
Site.name # => "StackOverflow"
Sit...
CSS Input Type Selectors - Possible to have an “or” or “not” syntax?
...syntax. At the time this question was asked, we needed a fall-back for IE7 and IE8. One option was to use a polyfill like IE9.js. Another was to exploit the cascade in CSS:
input {
// styles for most inputs
}
input[type=checkbox] {
// revert back to the original style
}
input.checkbox {
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How to get correct timestamp in C#
...e(), which returns January 1, 0001 at 00:00:00.000 instead of current date and time. The correct syntax to get current date and time is DateTime.Now, so change this:
String timeStamp = GetTimestamp(new DateTime());
to this:
String timeStamp = GetTimestamp(DateTime.Now);
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What is the equivalent of “!=” in Excel VBA?
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Fun fact to back this answer: Visual Basic and Pascal languages store strings with their length in the beginning and the content itself right after that. C-based and Java languages, on the other hand, do not store the length and have the '\0' (null) terminator to sign...