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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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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))
Making Linux Politically correct

[trainee@easterton ~]$ man ls
Manual page displayed here
[trainee@easterton ~]$ woman ls
-bash: woman: command not found
[trainee@easterton ~]$ alias woman=man
[trainee@easterton ~]$ woman ls
Manual page displayed here
[trainee@easterton ~]$


OK - I'll admit that this is quite a trivial use of the "alias" command which (if your running the default 'bash' shell) lets you rename commands - replacing longer names with shorter ones, and adding in some default options too. Here's an example of that, where I am adding the -F option to all my ls commands, as I would like a trailing @ * or / to indicate a link, executable or directory on my listing:

Dorothy-2:nov09 grahamellis$ ls
LinuxAdmin.book.pdf
LinuxBasicsAdmin.book.pdf
chamber.org.uk.tgz
no_50.rtf
notes
phpvna
pics
try
Dorothy-2:nov09 grahamellis$ alias ls='ls -F'
Dorothy-2:nov09 grahamellis$ ls
LinuxAdmin.book.pdf
LinuxBasicsAdmin.book.pdf
chamber.org.uk.tgz
no_50.rtf
notes
phpvna
pics/
try/
Dorothy-2:nov09 grahamellis$


alias commands remain active only for the life of the current shell - type them in at the command line, and they'll not be transferred to any new windows. And you'll loose them completely when you log out or close the window in which you have set them. If you want to make them permanent, edit them into your .bashrc file - that's the file that's read every time you start a new shell.

oh .. ".bashrc" => "Bourne Again Shell Runtime Commands" if you wondered!
(written 2009-11-06, updated 2009-11-07)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A101 - Web Application Deployment - Linux -An Introduction For Users
  [73] vi - full circle - (2004-10-04)
  [74] pushd and popd - (2004-10-05)
  [152] Aladdin, or careful what you wish. - (2004-12-15)
  [249] An easy way out - (2005-03-17)
  [430] Linux commands - some basics - (2005-08-31)
  [431] File permissions of Linux and Unix systems - (2005-08-31)
  [593] Finding where the disc space has gone - (2006-02-06)
  [659] Web Application Components - (2006-03-28)
  [679] More or less on the edge of the page - (2006-04-11)
  [703] Copying files and preserving ownership - (2006-04-28)
  [710] Linux training Glasgow, Python programming course Dundee - (2006-05-05)
  [711] THE home directory or MY home directory - (2006-05-06)
  [749] Cottage industry or production line data handling methods - (2006-06-07)
  [984] Cardinal numbers and magic numbers - (2006-12-14)
  [1012] Moving files between Windows / DOS and Linux / Unix - (2006-12-30)
  [1013] Copy multiple files - confusing error message from cp - (2006-12-30)
  [1068] ls -l report, Linux / Unix - types and permssions - (2007-02-06)
  [1259] Where am I and how did I get here? - (2007-07-05)
  [1287] Work and play at Well House Manor - Football and Shell Shortcuts - (2007-08-02)
  [1288] Linux run states, shell special commands, and directory structures - (2007-08-03)
  [1366] awk - a powerful data extraction and manipulation tool - (2007-09-25)
  [1408] Wireless hotel tips - FTP and Skype connections failing - (2007-10-26)
  [1438] Copy and paste / cut and paste and other vi techniques - (2007-11-20)
  [1527] Selecting file names in a shell - one word or another - (2008-02-02)
  [1651] ls command - favourite options - (2008-05-23)
  [1764] Yank and Push - copy and move in vi - (2008-08-21)
  [1803] FTP passive mode - a sometimes cure for upload hangs - (2008-09-20)
  [1893] Some Linux and Unix tips - (2008-11-18)
  [1897] Keeping on an even keel - (2008-11-21)
  [1902] sstrwxrwxrwx - Unix and Linux file permissions - (2008-11-23)
  [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23)
  [2201] Running straight from the jar, but not from a tar - (2009-05-26)
  [2203] Always use su with minus. And where do programs come from? - (2009-05-27)
  [2299] How much space does my directory take - Linux - (2009-07-20)
  [2300] What does x on a linux directory mean? - (2009-07-21)
  [2479] Accidentally typed ci rather than vi? - (2009-10-27)
  [2636] Linux - useful tips including history and file name completion - (2010-02-15)
  [2831] Recording (a macro) in vi - (2010-06-27)
  [3179] Oops - I typed ci not vi, and have lost my file ... - (2011-02-21)
  [3256] Displaying a directory or file system tree - Linux - (2011-04-22)
  [3791] The Kernel, Shells and Daemons. Greek Gods in computing - (2012-07-01)
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)


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Some other Articles
Remembrance Sunday 2009, Melksham
Brown horses in Melksham
A better design of mouth
Planning the future of Wiltshire
Making Linux Politically correct
Melksham buses to/from Chippenham, Trowbridge, Bath, Devizes, London
Lua Classes - open enrolement
Root is root for a reason!
Friendly Hotel in Melksham, near Bath
Parallel Pinging, using Python Threads or Expect spawn lists
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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.

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