For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.
Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!
I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
FTP - how not to corrupt data (binary v ascii)
Greetings from Aylesbury ... where I am spending much of this week during the day giving a Linux (LAMP) course
, and much of the evening catching up on work. So just a brief tip today ..
If you're transferring files with FTP, remember to specify Binary mode!
Perhaps advise you've heard before and not fully understood why
or perhaps - like most of us - something you've heard, forgotten, and then transferred a file to find that your hard-gotten data is corrupted.
In the default (ASCII) mode of transfer between windows and Linux / Unix systems, FTP translates new line sequences c/r, l/f to just l/f, or vice versa - thus effectively corrupting zip files, tar files, etc.
It's made the worse by the fact that the mapping doesn't exactly reverse when you transfer the file the other way ... so a transfer from Linux to Windows in ASCII, followed by a transfer back also in ASCII leaves you with a corrupted file (written 2008-06-24)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articlesW501 - Introduction to Web Site Structure 
Looking up IP addresses - (2005-06-01) 
Getting favicon to work - avoiding common pitfalls - (2005-12-14) 
Web site - a refresh to improve navigation - (2007-01-07) 
robots.txt - a clue to hidden pages? - (2007-01-13) 
Moving out some of the web site bloat - (2007-04-29) 
A pu that got me into trouble - (2007-05-04) 
From Web to Web 2 - (2007-05-21) 
Getting the community on line - some basics - (2007-11-13) 
What to do if the Home Page is missing - (2008-05-08) 
Search Engines. Getting the right pages seen. - (2009-01-01) 
If you have a spelling mistake in your URL / page name - (2009-03-21) 
Global Index to help you find resources - (2009-06-01) 
Checking robots.txt from Python - (2009-07-12) 
Web site traffic - real users, or just noise? - (2009-12-26)
Some other Articles
Conversion of c/r line ends to l/f line endsSome sideways thoughts on the newscannot restore segment prot after reloc message - PHP / httpdVirtual Hosting on Apache httpd - a primer exampleFTP - how not to corrupt data (binary v ascii)Short circuit evaluation (lazy operator) in LuaTwo PHP include files to make easy web site indexing and navigationPlenty of car parking at Well House Manor, Hotel, MelkshamAccounts in PHP - an OO demoAdding a button to a web page to print the page
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This is a page archived from The Horse's Mouth at
the diary and writings of Graham Ellis.
Every attempt was made to provide current information at the time the
page was written, but things do move forward in our business - new software
releases, price changes, new techniques. Please check back via
our main site for current courses,
prices, versions, etc - any mention of a price in "The Horse's Mouth"
cannot be taken as an offer to supply at that price.
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