You should find the ‘expect’ command will do what you need it to do. It’s widely available. See here for an example More examples here A very rough example: #!/usr/bin/expect set pass “mysecret” spawn /usr/bin/passwd expect “password: ” send “$pass” expect “password: ” send “$pass”
Generally, fgets() is considered a good option. It reads whole lines into a buffer, and from there you can do what you need. If you want behavior like scanf(), you can pass the strings you read along to sscanf(). The main advantage of this, is that if the string fails to convert, it’s easy to … Read more
All three situations you’ve described are where you need to specifically go out of your way to ensure you are using loose coupling in your design. Do you really need to unit test Python’s raw_input method? The open method? os.environ.get? No. You need to set up your design so that you can substitute other ways … Read more
Breakdown of scanf(“%*[^\n]%*c”): %*[^\n] scans everything until a \n, but doesn’t scan in the \n. The asterisk(*) tells it to discard whatever was scanned. %*c scans a single character, which will be the \n left over by %*[^\n] in this case. The asterisk instructs scanf to discard the scanned character. Both %[ and %c are … Read more
A bit late now, but here’s how to access keyboard state in a console application. Note that it’s not all managed code as it requires GetKeyState to be imported from User32.dll. /// <summary> /// Codes representing keyboard keys. /// </summary> /// <remarks> /// Key code documentation: /// http://msdn.microsoft.com/en-us/library/dd375731%28v=VS.85%29.aspx /// </remarks> internal enum KeyCode : int … Read more
$output = preg_replace(‘/([.!?])\s*(\w)/e’, “strtoupper(‘\\1 \\2’)”, ucfirst(strtolower($input))); Since the modifier e is deprecated in PHP 5.5.0: $output = preg_replace_callback(‘/([.!?])\s*(\w)/’, function ($matches) { return strtoupper($matches[1] . ‘ ‘ . $matches[2]); }, ucfirst(strtolower($input)));
Try java.io.Console.readPassword. You’ll have to be running at least Java 6 though. /** * Reads a password or passphrase from the console with echoing disabled * * @throws IOError * If an I/O error occurs. * * @return A character array containing the password or passphrase read * from the console, not including any line-termination … Read more
As Michael said, the issue is buffering. By default, output is buffered until you print a newline (or until the buffer is full if you have really long lines), so you’ll most often see this issue when trying to do same-line prompts using putStr like you’re doing. I suggest defining a small helper function like … Read more
The event when user releases his finger is MotionEvent.ACTION_UP. I’m not aware if there are any guidelines which prohibit using View.OnTouchListener instead of onClick(), most probably it depends of situation. Here’s a sample code: imageButton.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if(event.getAction() == MotionEvent.ACTION_UP){ // Do what you want return true; … Read more