Quadratics

 

Regex examples

REGEX

Ping TTL

The TTL can give an indication of which OS you are pinging...

Linux 64

Windows 128

Debugging output in visual Studio

Use the following to provide debugging information while developing in visual Studio;

System.Diagnostics.Debug.WriteLine("something of interest...");

Boostnote

I had issues installing boostnote on Debian using the download from the site.

Properly stopping an application without using monit.

Issue: Application that should not have been running had been started using monit and then stopped using monit.

Berkeley DB db.h is missing

I go this error while trying to configure gnucobol but I have seen it before somewhere, just cant for the life of me remember where. anyway, a solution is to install the following;

libdb-dev

HTML date picker

<label for="start">Start date:</label>
<input type="date" id="start" name="trip-start"
       value="2018-07-22"
       min="2018-01-01" max="2018-12-31">

Plate Mill

To dump query result to a file from commandline

If we want to save the output from a MySQL session to a file, we can do this by adding the following to the end of the query;

INTO OUTFILE '/tmp/myresults.csv';