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How to check programmatically if an application is installed or not in Android?
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Try with this:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Add respective layout
setContentView(R.layout.main_activity);
//...
Test if remote TCP port is open from a shell script
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As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <host> <port>
That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.
For a quick interactive check (with a 5 seconds timeout):
nc -z -v -w5 <host...
Diff output from two programs without temporary files
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Use <(command) to pass one command's output to another program as if it were a file name. Bash pipes the program's output to a pipe and passes a file name like /dev/fd/63 to the outer command.
diff <(./a) <(./b)
Similarly ...
Auto-reload browser when I save changes to html file, in Chrome?
...e you could do something like this with applescript:
http://brettterpstra.com/watch-for-file-changes-and-refresh-your-browser-automatically/
There is also a plugin for chrome called "auto refresh plus" where you can specify a reload every x seconds:
https://chrome.google.com/webstore/detail/auto-...
How do I use Wget to download all images into a single folder, from a URL?
...get -nd -r -P /save/location -A jpeg,jpg,bmp,gif,png http://www.somedomain.com
Here is some more information:
-nd prevents the creation of a directory hierarchy (i.e. no directories).
-r enables recursive retrieval. See Recursive Download for more information.
-P sets the directory prefix where...
How do I get the SharedPreferences from a PreferenceActivity in Android?
...ation. I am inflating the settings via a xml file so that my onCreate (and complete class methods) looks like this:
7 Answ...
Python Selenium accessing HTML source
...mport webdriver
browser = webdriver.Firefox()
browser.get("http://example.com")
html_source = browser.page_source
if "whatever" in html_source:
# do something
else:
# do something else
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difference between fork and branch on github
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154
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MVC4 DataType.Date EditorFor won't display date value in Chrome, fine in Internet Explorer
...s defined in [RFC 3339], with the additional
qualification that the year component is four or more digits
representing a number greater than 0.
You could enforce this format using the DisplayFormat attribute:
[DataType(DataType.Date)]
[DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyF...
How to change the port of Tomcat from 8080 to 80?
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119
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