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Bash continuation lines
...arameter separator) and are now only printed correctly because of the echo command.
– user880248
Sep 6 '11 at 7:19
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?
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For a simple check, or you can add more complex validation on each change
– Keith
Jul 13 '09 at 15:09
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InputStream from a URL
...r URL (including the protocol!). E.g.
InputStream input = new URL("http://www.somewebsite.com/a.txt").openStream();
// ...
See also:
Using java.net.URLConnection to fire and handle HTTP requests
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Responsive image map
... and all
interpret percentage coordinates as pixel coordinates.
http://www.howtocreate.co.uk/tutorials/html/imagemaps
And also this page for testing whether browsers implement
http://home.comcast.net/~urbanjost/IMG/resizeimg3.html
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Custom thread pool in Java 8 parallel stream
...cute it as a task in a fork-join pool, it stays there and does not use the common one.
final int parallelism = 4;
ForkJoinPool forkJoinPool = null;
try {
forkJoinPool = new ForkJoinPool(parallelism);
final List<Integer> primes = forkJoinPool.submit(() ->
// Parallel task ...
Truncate all tables in a MySQL database in one command?
Is there a query (command) to truncate all the tables in a database in one operation? I want to know if I can do this with one single query.
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URL query parameters to dict python
...library:
>>> from urllib import parse
>>> url = "http://www.example.org/default.html?ct=32&op=92&item=98"
>>> parse.urlsplit(url)
SplitResult(scheme='http', netloc='www.example.org', path='/default.html', query='ct=32&op=92&item=98', fragment='')
>>&...
Where can I set environment variables that crontab will use?
...ave 'cron' run a shell script that sets the environment before running the command.
Always.
# @(#)$Id: crontab,v 4.2 2007/09/17 02:41:00 jleffler Exp $
# Crontab file for Home Directory for Jonathan Leffler (JL)
#-----------------------------------------------------------------------------
#Mi...
MongoDB vs. Cassandra [closed]
...asier to set up and more reliable. (MongoDB's global write lock tends to become more painful, too.) Cassandra also gives a lot more control over how your replication works, including support for multiple data centers.
More concerned about simple setup, maintenance and code
Both are trivial to set ...
Select N random elements from a List in C#
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