Fix broken and HTTP links

tanto259 · tanto259 · commit d93008d5053f · 2021-06-12T14:29:42.000+08:00
Signed-off-by: Hartanto Ario Widjaya &lt;tanto259@users.noreply.github.com&gt;
diff --git a/COBOL Programming Course #1 - Getting Started/COBOL Programming Course #1 - Getting Started.md b/COBOL Programming Course #1 - Getting Started/COBOL Programming Course #1 - Getting Started.md
@@ -745,11 +745,11 @@ You can then level-up this process by leveraging a CI/CD pipeline. What is a CI/
 To know more about this topic, check [this](https://medium.com/@jessielaine.punongbayan/how-i-used-typescript-to-generate-my-cobol-programs-a2a180209148) out.
 
 ### Additional Examples
-If you are looking for an example on how to use Zowe Explorer and Zowe CLI with Db2 Stored Procedures, check out this [blog](https://www.idug.org/p/bl/et/blogid=278&blogaid=1007?es_id=c5a317e73e).
+If you are looking for an example on how to use Zowe Explorer and Zowe CLI with Db2 Stored Procedures, check out this [blog](https://www.idug.org/browse/blogs/blogviewer?BlogKey=22f9b8b4-4645-4c50-ba31-2d1140025544).
 
 If you are interested in using open source tools in your development, you can review this [blog](https://medium.com/zowe/how-to-write-cleaner-and-safer-z-os-code-with-zowe-cli-and-sonarqube-6afb283348f9) where it talks about using Zowe CLI to leverage static code analysis tools when developing COBOL applications.
 
-For additional blogs and articles on leveraging Zowe technologies, check out [https://medium.com/zowe/users/home](https://medium.com/zowe/users/home).
+For additional blogs and articles on leveraging Zowe technologies, check out [https://medium.com/zowe](https://medium.com/zowe).
 
 ## The world of modern open source tooling
 We have only scratched the surface of using modern tools and languages for mainframe development and incorporating mainframe applications into enterprise DevOps pipelines. As a bridge tool, the Zowe CLI enables the use of a plethora of tools being developed by an enormous community for mainframe development. If you are new to mainframe, hopefully this offers some familiarity as you transition into this space. If you are an experienced mainframer, hopefully you find time to give some of these available technologies a try to see if they can help you.
@@ -876,7 +876,7 @@ This section introduces two VSCode extensions, Zowe Explorer and IBM Z Open Edit
 
 Zowe is a new, and the first open source framework for z/OS and provides solutions for development and operations teams to securely manage, control, script and develop on the mainframe like any other cloud platform.  Out of the box, the Zowe Explorer provides a lot of functionality allowing z/OS developers access to jobs, datasets and (USS) files on a z/OS server.  Backed by the Zowe CLI and z/OSMF, developers now have powerful features that makes it easy to work with z/OS within the familiar VSCode environment.  This extension can be used to edit COBOL and PL/I files opened on z/OS MVS™ and USS using the Zowe extension's Data Sets and USS views.  It can even run JCL and lets you browse job spool files.  For more information on Zowe Explorer and its interaction with z/OS please visit:
 
-[https://ibm.github.io/zopeneditor-about/Docs/zowe_interactwithzos.html](https://ibm.github.io/zopeneditor-about/Docs/zowe_interactwithzos.html)
+[https://ibm.github.io/zopeneditor-about/Docs/interact_zos_zowe_explorer.html](https://ibm.github.io/zopeneditor-about/Docs/interact_zos_zowe_explorer.html)
 
 #### Install Zowe Explorer
 
@@ -886,7 +886,7 @@ Open VSCode and in the left side tool menu select **Extensions**.  From there, i
 
 *Figure  3.  Install Zowe Explorer in VSCode*
 
-The Zowe communinity have a number of on-line video that walk through the steps required to install, configure and operate the Zowe Explorer, see [Zowe Explorer VSC Extension (part 1)](http://www.youtube.com/watch?v=G_WCsFZIWt4&t=0m38s).
+The Zowe communinity have a number of on-line video that walk through the steps required to install, configure and operate the Zowe Explorer, see [Zowe Explorer VSC Extension (part 1)](https://www.youtube.com/watch?v=G_WCsFZIWt4&t=0m38s).
 
 ### IBM Z Open Editor
 
@@ -1187,7 +1187,7 @@ COBOL programming language has many words with specific meaning to the COBOL com
 
 A few COBOL reserved words pertinent to this book are: PERFORM, MOVE, COMPUTE, IF, THEN, ELSE, EVALUATE, PICTURE, etc..  You can find a table of all COBOL reserved words is located at:
 
-[https://www.ibm.com/support/knowledgecenter/SS6SG3_6.3.0/lr/ref/rlres.html](https://www.ibm.com/support/knowledgecenter/SS6SG3_6.3.0/lr/ref/rlres.html)
+[https://www.ibm.com/docs/en/cobol-zos/6.3?topic=appendixes-reserved-words](https://www.ibm.com/docs/en/cobol-zos/6.3?topic=appendixes-reserved-words)
 
 
 ### What is a COBOL statement?
@@ -1313,15 +1313,15 @@ Three ‘Enterprise COBOL for z/OS” manuals are referenced throughout the chap
 
 - What’s New in Enterprise COBOL for z/OS V6.1:
 
-   [https://youtu.be/N_Zsd1W8hWc](https://youtu.be/N_Zsd1W8hWc)
+   [https://www.ibm.com/support/pages/cobol-v61-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v61-was-announced-whats-new)
 
 - What’s New in Enterprise COBOL for z/OS V6.2:
 
-   [https://youtu.be/H0iweEbVNFs](https://youtu.be/H0iweEbVNFs)
+   [https://www.ibm.com/support/pages/cobol-v62-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v62-was-announced-whats-new)
 
 - What’s New in Enterprise COBOL for z/OS V6.3:
 
-   [https://youtu.be/bRLKGeB6W2A](https://youtu.be/bRLKGeB6W2A)
+   [https://www.ibm.com/support/pages/cobol-v63-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v63-was-announced-whats-new)
 
 ## Lab
 
@@ -2037,7 +2037,7 @@ As a result, the COBOL internal ACCT-REC file name reads data records from seque
 
 JCL is a separate z/OS technical skill.  The introduction to COBOL explains just enough about JCL to understand how the COBOL internal file name locates the external sequential dataset name. To read more on JCL, visit the IBM Knowledge Center:
 
-[https://www.ibm.com/support/knowledgecenter/zosbasics/com.ibm.zos.zjcl/zjclc_basicjclconcepts.htm](https://www.ibm.com/support/knowledgecenter/zosbasics/com.ibm.zos.zjcl/zjclc_basicjclconcepts.htm)
+[https://www.ibm.com/docs/en/zos-basic-skills?topic=collection-basic-jcl-concepts](https://www.ibm.com/docs/en/zos-basic-skills?topic=collection-basic-jcl-concepts)
 
 
 ## PROCEDURE DIVISION sequential file handling
@@ -3305,7 +3305,7 @@ The sign condition determines whether the algebraic value of a numeric operand i
 
 **Note** : To read more information about these conditions please visit the link:
 
-[IBM Knowledge Center - Enterprise COBOL for z/OS 6.3.0](https://www.ibm.com/support/knowledgecenter/SS6SG3_6.3.0/lr/ref/rlpdsxco.html)
+[https://www.ibm.com/docs/en/cobol-zos/6.3?topic=structure-conditional-expressions](https://www.ibm.com/docs/en/cobol-zos/6.3?topic=structure-conditional-expressions)
 
  
 ## Lab
diff --git a/COBOL Programming Course #2 - Advanced Topics/COBOL Programming Course #2 - Advanced Topics.md b/COBOL Programming Course #2 - Advanced Topics/COBOL Programming Course #2 - Advanced Topics.md
@@ -48,15 +48,15 @@ Three ‘Enterprise COBOL for z/OS” manuals are referenced throughout the chap
 
 - What’s New in Enterprise COBOL for z/OS V6.1:
 
-   [https://youtu.be/N_Zsd1W8hWc](https://youtu.be/N_Zsd1W8hWc)
+   [https://www.ibm.com/support/pages/cobol-v61-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v61-was-announced-whats-new)
 
 - What’s New in Enterprise COBOL for z/OS V6.2:
 
-   [https://youtu.be/H0iweEbVNFs](https://youtu.be/H0iweEbVNFs)
+   [https://www.ibm.com/support/pages/cobol-v62-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v62-was-announced-whats-new)
 
 - What’s New in Enterprise COBOL for z/OS V6.3:
 
-   [https://youtu.be/bRLKGeB6W2A](https://youtu.be/bRLKGeB6W2A)
+   [https://www.ibm.com/support/pages/cobol-v63-was-announced-whats-new](https://www.ibm.com/support/pages/cobol-v63-was-announced-whats-new)
 
 \newpage
 # Numerical Data Representation
@@ -750,7 +750,7 @@ We will explore the popular Hacker News website for this challenge. Hacker News
 The site offers a dynamic list of posts/stories, submitted by users, each of which could be expanded into its own unique comment thread. Readers can upvote or downvote links and comments, and the top thirty links are featured on the front page. Today, more than five million people read Hacker News each month, and landing a blog post on the front page is a badge of honor for many technologists.
 
 ### Our Goal
-We will be working on a Hacker News 2015-2016 dataset from Kaggle with a full year’s worth of stories:  Our goal is to extract only the Mainframe/COBOL related stories and assign ranking scores to them based on (a simplified version) the published Hacker News ranking algorithm. We will create a front page report that reflects this ranking order. The algorithm works in a way that nothing stays on the front page for too long, so a story’s score will eventually drop to zero over time (the gravity effect). Since our posts are spread out over a year and as older posts will always have a lower (or zero) ranking, we will distort the data so all our stories have the same date and and consider only the times in the ranking score calculation. This will give all our posts a fair chance of landing the front page.  Our front page report is published at 11:59pm. [Here's some additional information on the ranking.](http://www.righto.com/2013/11/how-hacker-news-ranking-really-works.html)
+We will be working on a Hacker News 2015-2016 dataset from Kaggle with a full year’s worth of stories:  Our goal is to extract only the Mainframe/COBOL related stories and assign ranking scores to them based on (a simplified version) the published Hacker News ranking algorithm. We will create a front page report that reflects this ranking order. The algorithm works in a way that nothing stays on the front page for too long, so a story’s score will eventually drop to zero over time (the gravity effect). Since our posts are spread out over a year and as older posts will always have a lower (or zero) ranking, we will distort the data so all our stories have the same date and and consider only the times in the ranking score calculation. This will give all our posts a fair chance of landing the front page.  Our front page report is published at 11:59pm. [Here's some additional information on the ranking.](https://www.righto.com/2013/11/how-hacker-news-ranking-really-works.html)
 
 ### The Plan
  - There are different creative ways of accomplishing this but here’s our plan: We will have a COBOL program that reads the input CSV file and retrieves only the ***Mainframe/COBOL*** stories. It then calculates the ranking score for the stories by factoring in the time they were posted and the number of votes they received. Each of the records is then written to an output dataset along with the ranking score. 
@@ -778,9 +778,9 @@ We will be working on a Hacker News 2015-2016 dataset from Kaggle with a full ye
 
 5. Next add a new step in the JCL member to run the `DFSORT` utility on the output dataset from the previous step. The sort should be done on the ranking score field, from highest to lowest. Use `DFSORT` to also print headers for our front page. As this is a new utility not covered in the course, please check out these links to explore this very powerful and versatile tool:
  
-   [Getting started with DFSORT](https://www.ibm.com/support/knowledgecenter/SSLTBW_2.4.0/com.ibm.zos.v2r4.iceg200/abstract.htm)
+   [Getting started with DFSORT](https://www.ibm.com/docs/en/zos/2.4.0?topic=dfsort-zos-getting-started)
 
-   [Example with DFSORT](https://www.ibm.com/support/knowledgecenter/SSLTBW_2.4.0/com.ibm.zos.v2r4.icea100/ice2ca_Example_10._Sort_with_OUTFIL.htm)
+   [Example with DFSORT](https://www.ibm.com/docs/en/zos/2.4.0?topic=examples-example-10-sort-outfil)
 
 
 6. Run and debug until the front page looks ready! Which posts ranked among the highest? Here's a look at the generated report:
