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How can I programmatically create a new cron job?
...ays worked well for me.
You should consider a slightly more sophisticated script that can do three things.
Append a crontab line; assuring that it didn't exist. Adding when it already exists is bad.
Remove the crontab line. Perhaps only warning if it didn't exist.
A combination of the above two...
When should one use HTML entities?
...facto standard in web development I'm not sure in which situations I'm supposed to use the HTML entities and for which ones should I just use the UTF-8 character. For example,
...
Receiving “fatal: Not a git repository” when attempting to remote add a Git repo
...
Did you init a local Git repository, into which this remote is supposed to be added?
Does your local directory have a .git folder?
Try git init.
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How to send a PUT/DELETE request in jQuery?
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You could use the ajax method:
$.ajax({
url: '/script.cgi',
type: 'DELETE',
success: function(result) {
// Do something with the result
}
});
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Apply CSS styles to an element depending on its child elements
...n the child element is not an available feature of CSS. You'll likely need scripting for this.
It'd be wonderful if you could do something like div[div.a] or div:containing[div.a] as you said, but this isn't possible.
You may want to consider looking at jQuery. Its selectors work very well with '...
How do I find out which settings.xml file maven is using
...home: /usr/java/apache-maven-3.0.3
Java version: 1.6.0_12, vendor: Sun Microsystems Inc.
Java home: /usr/java/jdk1.6.0_12/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-32-generic", arch: "i386", family: "unix"
[INFO] Error stacktraces are turned on.
[DEBUG] R...
Datepicker: How to popup datepicker when click on edittext
...kerDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TimePicker;
import java.util.Calendar;
public class MainActivity extends AppCompatActivity impleme...
How to stop event bubbling on checkbox click
...adding: 2em;
font-size: 1.2em
}
.hidden {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="header"><input type="checkbox" />Checkbox won't bubble the event, but this text will.</div>
<di...
SQL, Postgres OIDs, What are they and why are they useful?
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To remove all OIDs from your database tables, you can use this Linux script:
First, login as PostgreSQL superuser:
sudo su postgres
Now run this script, changing YOUR_DATABASE_NAME with you database name:
for tbl in `psql -qAt -c "select schemaname || '.' || tablename from pg_tables WHERE...
Autoincrement VersionCode with gradle extra properties
... This one is running with Gradle 4.4 and Android Studio 3.1.1.
What this script does:
Creates a version.properties file if none exists (up vote Paul Cantrell's answer below, which is where I got the idea from if you like this answer)
For each build, debug release or any time you press the run bu...