README update

README.md

@@ -1,4 +1,4 @@
-# GPL MUMPS by Example
+# MUMPS Examples
 
 **MUMPS** ("Massachusetts General Hospital Utility Multi-Programming System"), or **M**, is a general-purpose computer programming language originally designed in 1966 for the healthcare industry. Its differentiating feature is its "built-in" database, enabling high-level access to disk storage using simple symbolic program variables and subscripted arrays; similar to the variables used by most languages to access main memory. [Read more...](https://en.wikipedia.org/wiki/MUMPS)
 
@@ -9,26 +9,38 @@ The implementations currently available are:
 - [MUMPS Database and Language by Ray Newman](http://sourceforge.net/projects/mumps/)
 - [Open Mumps](http://www.cs.uni.edu/~okane/)
 
-The examples in this tutorial are run with GPL Mumps.
+The examples in this tutorial are run with both GPL Mumps and GT.M.
 
 ## Prerequisites
 
+### GPL Mumps
+
 - [The Mumps Programming Language](https://www.cs.uni.edu/~okane/)
 - [Mumps Language Users' Guide](https://www.cs.uni.edu/~okane/source/MUMPS-MDH/ReadMe.pdf)
 - [Mumps Language Quick Introduction & Tutorial](https://www.cs.uni.edu/~okane/source/MUMPS-MDH/MumpsTutorial.pdf)
 
+### GT.M
+
+- [MUMPS Technology Portal](http://mumps.cz/)
+
+---
+
 ## Quick Setup
 
-Download the open source distribution of the [Mumps interpreter](https://www.cs.uni.edu/~okane/source/MUMPS-MDH/mumps-18.02.src.tar.gz) and run the following commands:
+### GPL Mumps
 
+To install the open source distribution of the Mumps interpreter:
+
+    cd /usr/local/src
+    wget https://www.cs.uni.edu/~okane/source/MUMPS-MDH/mumps-18.02.src.tar.gz
     tar -zxvf mumps-18.02.src.tar.gz
     cd mumpsc
-    sudo ./ConfigureNative.script
+    ./ConfigureNative.script
-    sudo ./BuildMumpsWithGlobalsInSingleUserNative.script
+    ./BuildMumpsWithGlobalsInSingleUserNative.script
 
 The resulting interpreter is located in `/usr/bin/mumps`.
 
-    $ mumps
+    mumps
 
     Mumps 17.30; Built: 16:05:53 Sep 23 2019
     Float: double; DBMS: Native Stand Alone; Hardware math: yes; Int: int; Float digits: 6; Cache: 33; Block: 2048; FP Bits: N/A
@@ -40,14 +52,44 @@ The resulting interpreter is located in `/usr/bin/mumps`.
     > halt
     EOF - goodbye ...
 
+To uninstall GPL Mumps:
+
+    cd /usr/local/src/mumpsc
+    make uninstall
+    rm -f /usr/bin/mumps*
+
+### GT.M
+
+To install GT.M on Debian based OS:
+
+    apt-get install fis-gtm
+
+Set up the environment variables:
+
+    source /usr/lib/x86_64-linux-gnu/fis-gtm/V6.3-003A_x86_64/gtmprofile
+
+Open the GT.M prompt:
+
+    gtm
+
+    GTM>write "Hello world"
+    Hello world
+    GTM>halt
+
+To uninstall GT.M:
+
+    apt-get purge fis-gtm
+
+---
+
 ## 1. The Very Basics
 
 ### [`01-hello-world.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/01-hello-world.mps)
-    $ mumps 01-hello-world.mps
+
     Hello world
 
 ### [`02-hello-world-in-a-loop.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/02-hello-world-in-a-loop.mps)
-    $ mumps 02-hello-world-in-a-loop.mps
+
     Hello world
     Hello world
     Hello world
@@ -60,7 +102,7 @@ The resulting interpreter is located in `/usr/bin/mumps`.
     Hello world
 
 ### [`03-hello-world-in-another-loop.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/03-hello-world-in-another-loop.mps)
-    $ mumps 03-hello-world-in-another-loop.mps
+
     Hello world
     Hello world
     Hello world
@@ -73,7 +115,7 @@ The resulting interpreter is located in `/usr/bin/mumps`.
     Hello world
 
 ### [`04-hello-world-in-a-nested-loop.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/04-hello-world-in-a-nested-loop.mps)
-    $ mumps 04-hello-world-in-a-nested-loop.mps
+
     1:1 Hello world
     1:2 Hello world
     1:3 Hello world
@@ -86,7 +128,7 @@ The resulting interpreter is located in `/usr/bin/mumps`.
     2:5 Hello world
 
 ### [`05-arithmetic-operations.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/05-arithmetic-operations.mps)
-    mumps 05-arithmetic-operations.mps
+
     There were 7 apples, 8 pears and 9 oranges,
     a total of 24 fruits in a basket.
     Then, something happened:
@@ -95,7 +137,7 @@ The resulting interpreter is located in `/usr/bin/mumps`.
     the average fruit value is 7.
 
 ### [`06-arrays.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/01-the-very-basics/06-arrays.mps)
-    mumps 06-arrays.mps
+
     Approaching the solar system:
     Mercury
     Venus
@@ -125,7 +167,6 @@ The resulting interpreter is located in `/usr/bin/mumps`.
 
 ### [`01-factorial-by-reference.mps`](https://github.com/programarivm/gpl-mumps-by-example/blob/master/02-user-defined-functions/01-factorial-by-reference.mps)
 
-    mumps 01-factorial-by-reference.mps
     Enter n: 5
     5! = 120