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How do I use a file grep comparison inside a bash if/else statement?
...m grep --help, but also see man grep:
Exit status is 0 if any line was selected, 1 otherwise;
if any error occurs and -q was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specif...
How can I create a “Please Wait, Loading…” animation using jQuery?
...
This site has a larger and in my opinion nicer selection of loaders with more customization options preloaders.net
– rorypicko
Dec 22 '13 at 19:35
...
Why would $_FILES be empty when uploading files to PHP?
...rm action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
...
How to detect if app is being built for device or simulator in Swift
...n -D IOS_SIMULATOR in Swift Compiler - Custom Flags > Other Swift Flags
Select Any iOS Simulator SDK in this drop down
Now you could use this statement to detect simulator:
#if IOS_SIMULATOR
print("It's an iOS Simulator")
#else
print("It's a device")
#endif
Also you could extend UID...
How to create a library project in Android Studio and an application project that uses the library p
...
To create a library:
File > New Module
select Android Library
To use the library add it as a dependancy:
File > Project Structure > Modules > Dependencies
Then add the module (android library) as a module dependency.
Run your project. It will wo...
Hide hidden(dot) files in github atom editor
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As stated above, Application menu > Preferences… > select Packages in the sidebar, search for "Tree View", click the Settings button > check Hide Ignored Names.
And now with pictures:
share
...
Detect changes in the DOM
... (click to delete)</button></li>",
listElm = document.querySelector('ol');
document.querySelector('body > button').onclick = function(e){
listElm.insertAdjacentHTML("beforeend", itemHTML);
}
// delete item
listElm.onclick = function(e){
if( e.target.nodeName == "BUTTON" )
...
Implementing two interfaces in a class with same method. Which interface method is overridden?
...e is only one method to implement, and thus there's nothing to distinguish/select from.
The compiler does not have to identify which method is for which interface, because once they are determined to be @Override-equivalent, they're the same method.
Resolving potential incompatibilities may be a ...
How to deal with a slow SecureRandom generator?
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You should be able to select the faster-but-slightly-less-secure /dev/urandom on Linux using:
-Djava.security.egd=file:/dev/urandom
However, this doesn't work with Java 5 and later (Java Bug 6202721). The suggested work-around is to use:
-Djav...
How to jQuery clone() and change id?
....Bulijan pointed out.. you need to use .insertAfter to insert it after the selected div. Also see updated code if you want it appended to the end instead of beginning when cloned multiple times. DEMO
Code:
var cloneCount = 1;;
$("button").click(function(){
$('#id')
.clone()
...