For 2023 (and 2024 ...) - 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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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)) |
No news is good news with Unix and Linux
No news is good news ... so says Linux and Unix. All processes return a status code, and you can expect that to be:
0 - success
1 - failure
2 - abject failure
So, for example, the grep utility returns a status as follows:
0 - found what you were looking for!
1 - nothing found
2 - sorry - couldn't even read the input file (written 2006-08-10)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles A167 - Web Application Deployment - Shell Programming (bash) [63] Almost like old times - (2004-09-26) [64] Shell Script for CGI on the web - (2004-09-26) [749] Cottage industry or production line data handling methods - (2006-06-07) [1287] Work and play at Well House Manor - Football and Shell Shortcuts - (2007-08-02) [1345] Perl and Shell coding standards / costs of an IT project - (2007-09-11) [1468] Lexical v Arithemetic testing, Bash and Perl - (2007-12-11) [1527] Selecting file names in a shell - one word or another - (2008-02-02) [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23) [3791] The Kernel, Shells and Daemons. Greek Gods in computing - (2012-07-01) [4400] Commenting out an echo killed my bash backup script - (2015-01-19) [4487] Starting MySQL. ERROR! The server quit without updating PID file - how we fixed it. - (2015-05-06) [4584] Bash ... some new scripts to - handling user input - (2015-11-27) [4586] Extending your bash shell with aliases, functions and extra commands - (2015-11-28) [4587] shell - bash. Writing conditional tests and statements - the options available - (2015-11-28)
Some other Articles
Comparison of Object Oriented Philosophy - Python, Java, C++, PerlButterflies in a Wiltshire gardenWhere to go within 30 minutes of MelkshamFreedom of speech and freedom to postNo news is good news with Unix and LinuxFighting illegal net use by imposing download limitsPictures of the Vale of PewseyPictures of Avebury, Longleat and DyrhamAn excellent use for a visitor count?PHP - a team member leaves
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This is a page archived from The Horse's Mouth at
http://www.wellho.net/horse/ -
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.
Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).
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