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Unix tail equivalent command in Windows Powershell
...ge file (typical size is 500MB-2GB). I am looking for a equivalent of Unix command tail for Windows Powershell. A few alternatives available on are,
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Error inflating when extending a class
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logger configuration to log to file and print to stdout
...dout))
You could also add a Formatter to it so all your log lines have a common header.
ie:
import logging
logFormatter = logging.Formatter("%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s] %(message)s")
rootLogger = logging.getLogger()
fileHandler = logging.FileHandler("{0}/{1}.log".for...
@Resource vs @Autowired
...or the standard (JSR-330) annotation @javax.inject.Inject - use it, with a combination of @Qualifier. Note that spring now also supports the @javax.inject.Qualifier meta-annotation:
@Qualifier
@Retention(RUNTIME)
public @interface YourQualifier {}
So you can have
<bean class="com.pkg.SomeBean...
How do I resolve git saying “Commit your changes or stash them before you can merge”?
...you from losing potentially important changes.
You have three options:
Commit the change using
git commit -m "My message"
Stash it.
Stashing acts as a stack, where you can push changes, and you pop them in reverse order.
To stash, type
git stash
Do the merge, and then pull the stash:
git...
Objective-C: Property / instance variable in category
... So if you wanted to use this on multiple instances and have each instance compute a distinct value, it wouldn't work.
Fortunately, the Objective-C runtime has this thing called Associated Objects that can do exactly what you're wanting:
#import <objc/runtime.h>
static void *MyClassResultKe...
How do you make an element “flash” in jQuery
...eight: 50px;
width: 150px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button onclick="go1()">Click Me</button>
<div id='demo1'>My Element</div>
<br>
<button onclick="go2()">Click Me</button&...
Calculate RSA key fingerprint
...
Run the following command to retrieve the SHA256 fingerprint of your SSH key (-l means "list" instead of create a new key, -f means "filename"):
$ ssh-keygen -lf /path/to/ssh/key
So for example, on my machine the command I ran was (using RS...
How to write asynchronous functions for Node.js
...n(err, result) {
if (err) handle(err);
doSomething(result);
});
Is a common pattern.
Another common pattern is on('error'). For example
process.on('uncaughtException', function (err) {
console.log('Caught exception: ' + err);
});
Edit:
var async_function = function(val, callback){
p...
How to update Python?
... installed from early 2012. I can't find any consensus on whether I should completely uninstall and wipe this version before putting on the latest version.
...