How can I format an EditText to follow the “dd/mm/yyyy” format the same way that we can format using a TextWatcher to mask the user input to look like “0.05€”. I’m not talking about limiting the characters, or validating a date, just masking to the previous format. Answer I wrote this TextWatcher for a project, … Read more
Is there a command line based way to send pings to each computer in a subnet? Like for(int i = 1; i < 254; i++) ping(192.168.1.i); to enforce arp resolution? Answer Not all machines have nmap available, but it’s a wonderful tool for any network discovery, and certainly better than iterating through independent ping commands. … Read more
How can I apply mask to a color image in latest python binding (cv2)? In previous python binding the simplest way was to use cv.Copy e.g. cv.Copy(dst, src, mask) But this function is not available in cv2 binding. Is there any workaround without using boilerplate code? Answer Here, you could use cv2.bitwise_and function if you … Read more
I would like to implement a mask for a text input field which accepts a date. The masked value should display directly inside of the input. Something like this: <input type=’text’ value=’____/__/__’> I wrote the mask as a value in that example, but my intent is to allow people to write a date without typing … Read more
The SVG I’m working with has a drop shadow via feGaussianBlur filter. The shadow itself is displayed properly, but gets cut off on top and bottom edges. Like so: The SVG in question is: <?xml version=”1.0″ standalone=”no” ?> <!DOCTYPE svg PUBLIC ‘-//W3C//DTD SVG 1.1//EN’ ‘http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd’> <svg height=”600″ version=”1.1″ width=”700″ xml:space=”preserve” xmlns=”http://www.w3.org/2000/svg” xmlns:xlink=”http://www.w3.org/1999/xlink”> <defs/> <filter id=”SVGID_0″> … Read more
I’m writing a PHP script to be used to check for network connections with Linux shell command ping calling it with PHP’s exec(): <?php // Bad IP domain for testing. $domain_bad = “lksjdflksjdf.com”; $ip_address = $domain_bad; exec(“ping -c 1 $domain_bad”, $output, $return_var); var_dump($return_var); echo “return_var is: $return_var” . “\n”; var_dump($output); exit; ?> I’m not getting … Read more
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 6 years ago. Improve this question I have an VM (VirtualBox) with Ubuntu. Host machine is Windows 7. How can I ping my Ubuntu from … Read more
I want to write a script, that would keep checking if any of the devices in network, that should be online all day long, are really online. I tried to use ping, but if [ “`ping -c 1 some_ip_here`” ] then echo 1 else echo 0 fi gives 1 no matter if I enter valid … Read more
I am using this part of code to ping an ip address in java but only pinging localhost is successful and for the other hosts the program says the host is unreachable. I disabled my firewall but still having this problem public static void main(String[] args) throws UnknownHostException, IOException { String ipAddress = “127.0.0.1”; InetAddress … Read more
How do I ping a website or IP address with Python? Answer See this pure Python ping by Matthew Dixon Cowles and Jens Diemer. Also, remember that Python requires root to spawn ICMP (i.e. ping) sockets in linux. import ping, socket try: ping.verbose_ping(‘www.google.com’, count=3) delay = ping.Ping(‘www.wikipedia.org’, timeout=2000).do() except socket.error, e: print “Ping Error:”, e … Read more
