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4400 - Commenting out an echo killed my bash backup script
"Commenting out an echo killed my bash script" - yes, really! Here (with password amended!) is part of my bash script which takes a database snapshot from time to time - and it's been running well over a 24 hour cycle, giving me checkpoints to return to. But it was getting a bit verbose, so I adde ....

4399 - The Campus in Melksham - name, logo, and livery choice
What should the new Melksham Campus be called? How should it look and feel? The arts and heritage subgroup of the Community Operations Board took a look at this, with professional help, a year or so back and came to some conclusions about building the community into the whole fabric of the buildin ....

4398 - Accessing variables across subroutine boundaries - Perl, Python, Java and Tcl
In a perfect programming world, code is broken into named blocks (methods, functions, subroutines, classes, procedures, commands, modules, packages etc) and data is passed around between the blocks purely as parameters and return values. And variables are local to the block in which they're used. ....

4397 - TransWilts / Press and Publicity report for AGM / 30th January 2015
Blogged here for the record 2014 saw the development of traffic on the Swindon to Westbury service from around 20,000 passengers annually in the previous year to around 160,000 passengers, aided by significant train service enhancements from 8th December 2013. In order to inform people of the avail ....

4396 - Java Utility class - flexible replacement for array. Also cacheing in objects and multiple catch clauses example.
In Java, utility class objects are used as flexible alternatives to arrays to hold collections of other obejcts. ArrayLists and Vectors hold an ordered (indexed) set of other objects, but due to the structure used in memory, there's no need to know how many items there are going to be in the collec ....

4395 - Preparing data through a little bit of Perl
A Java course - and yet I used Perl to sort out some incoming data for a new exericse overnight. That's not because Perl is "better" than Java - its just that it's more appropriate for the quick, one-off data reformat that I needed.   chop;   $lyne .= $_ . " ";   $k%= ....

4394 - Philosophy behind object design - and how I applied in to a Java example
* When you're writing all the logic to deal with a particular type of data, it's a good idea to write it into a CLASS * Where you have similar types of data, it's a good idea to put the shared logic into a BASE CLASS and then write SUBCLASSES which are based on that base class. That way your comm ....

4393 - Splitting Java strings and extracting numbers
In Java you can use packages in the utility class to handle strings, or you can use methodsin java.lang.String which has been enhanced from version to version and now includes methods such as String.split(). Examples from today's course - taking a line of data (which could have been read from a fil ....

4392 - Interview conditions,and other instructions to staff
"Interviews in Progress - please keep quiet". I had to chuckle - I'm working on the site of a large organisation this week, and as such it's naturally become very much more rule-infested and noticified than the typical smaller place. Instructions not to use your mobile phones in certain areas, not ....

4391 - Refactoring Perl applications to give them a rosy future
I'm doing some contract work at the moment to help sort out a Perl / CGI web solution that's been running well for a number of years, but needs enhancements and a route forward, and for which the original team's no longer available having moved into other full time employment. And it strikes me fro ....

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