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Intermittent log4net RollingFileAppender locked file issue
We are seeing an intermittent issue on development and production machines whereby our log files are not getting logged to.
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How to create a hex dump of file containing only the hex characters without spaces in bash?
...te an unmodified hex dump of a binary file in Linux using bash? The od and hexdump commands both insert spaces in the dump and this is not ideal.
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Why does the lock object have to be static?
... a private static readonly object for locking in multi threading.
I understand that private reduces the entry points to the locking object by tightening the encapsulation and therefore access to the most essential.
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Clojure: cons (seq) vs. conj (list)
I know that cons returns a seq and conj returns a collection. I also know that conj "adds" the item to the optimal end of the collection, and cons always "adds" the item to the front. This example illustrates both of these points:
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Using the Underscore module with Node.js
I've been learning about node.js and modules, and can't seem to get the Underscore library to work properly... it seems that the first time I use a function from Underscore, it overwrites the _ object with the result of my function call. Anyone know what's going on? For example, here is a session ...
Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
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Android: create a popup that has multiple selection options
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You can create a String array with the options you want to show there and then pass the array to an AlertDialog.Builder with the method setItems(CharSequence[], DialogInterface.OnClickListener).
An example:
String[] colors = {"red", "green", "blue", "black"};
AlertDialog.Builder builder = ne...
Resync git repo with new .gitignore file
...gnore already-tracked files":
git rm --cached `git ls-files -i --exclude-standard`
Bassim suggests in his edit:
Files with space in their paths
In case you get an error message like fatal: path spec '...' did not match any files, there might be files with spaces in their path.
You can remove all ...
Does the order of LINQ functions matter?
...r result = query.Last();
That requires the whole collection to be sorted and then filtered. If we had a million items, only one of which had a code greater than 3, we'd be wasting a lot of time ordering results which would be thrown away.
Compare that with the reversed operation, filtering first:...
Print array elements on separate lines in Bash?
...doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquoted, the results are unspecified. In Bash, both expand to separate args
and then wordsplit and globbed.
Quoted, "$@" expands each element as a separate argument, while "$*"
expands to the args merged into one a...