[talks/lbs] Added sources for pseudoterminals and manuals

1 files changed, 3 insertions, 0 deletions

diff --git a/src/talks/linuxgraphy-by-strabo/index.md b/src/talks/linuxgraphy-by-strabo/index.md
index 543c1f7..a3a5fd3 100644
--- a/src/talks/linuxgraphy-by-strabo/index.md
+++ b/src/talks/linuxgraphy-by-strabo/index.md
@@ -1252,12 +1252,15 @@ They served as personal educational and reference tools.
 - [CS416 - Operating Systems Design](https://people.cs.rutgers.edu/~pxk/416/index.html) by [Paul Krzyzanowski](https://people.cs.rutgers.edu/~pxk/rutgers/) at [Rutgers State University](https://www.cs.rutgers.edu/)
 - [Origins and History of UNIX, 1969-1995](https://web.archive.org/web/20220713165958/https://homepage.cs.uri.edu/~thenry/resources/unix_art/ch02s01.html) from [The Art of Unix Programming](https://web.archive.org/web/20220611160552/https://homepage.cs.uri.edu/~thenry/resources/unix_art/index.html) by Eric Steven Raymond
 - [Ken Thompson interviewed by Brian Kernighan at VCF East 2019](https://www.youtube.com/watch?v=EY6q5dv_B-o) by [Vintage Computer Federation](https://vcfed.org/)
+- [Pseudo Terminals presentation](http://www.cs.uah.edu/~kkeen/CS590/Pseudo%20Terminals.ppt) from [CS590](http://www.cs.uah.edu/~kkeen/CS590/) by [Kevin J. Keen](http://www.cs.uah.edu/~kkeen/kkeen.html) at [University of Alabama in Huntsville](https://www.uah.edu/)
 - [Hard links and Unix file system nodes](https://teaching.idallen.com/dat2330/04f/notes/links_and_inodes.html) from [DAT 2330 Introduction to Operating Systems](https://teaching.idallen.com/dat2330/04f/) by [Ian D. Allen](http://www.idallen.com/)
 - [Virtual Memory, OS Course Notes](https://www.cs.uic.edu/~jbell/CourseNotes/OperatingSystems/9_VirtualMemory.html) by [Dr. John T. Bell](https://www.cs.uic.edu/~jbell/) at [University of Illinois Chicago](https://www.cs.uic.edu),  
   which is directly based on [Operating System Concepts, 9th Edition](https://archive.org/details/operating-system-concepts-9e) by [Abraham Silberschatz](https://codex.cs.yale.edu/avi/)
 - [Chapter 9 Preview - Virtual Memory](http://csapp.cs.cmu.edu/3e/home.html) from [Computer Systems: A Programmer's Perspective](http://csapp.cs.cmu.edu/) by [Randal E. Bryant](http://www.cs.cmu.edu/~bryant) and [David R. O'Hallaron](http://www.cs.cmu.edu/~droh)
 - [Memory Management, Lecture Notes](https://www.cse.iitb.ac.in/~mythili/teaching/cs347_autumn2016/notes/07-memory.pdf) by [Mythili Vutukuru](https://www.cse.iitb.ac.in/~mythili/)
 - [Paging advantages and disadvantages](http://www.cs.iit.edu/~cs561/cs351/VM/paging%20advantages%20and%20disadvantages.html) by Charles R. Bauer at [Computer Science Departmemnt of Illinois Institute of Technology](http://www.cs.iit.edu/)
+- [Bash Reference Manual](https://www.gnu.org/savannah-checkouts/gnu/bash/manual/bash.html) by the [GNU project](https://www.gnu.org/) and [ksh manual](https://man.openbsd.org/ksh) by the [OpenBSD project](https://www.openbsd.org/)
+- [Manual of the Bourne Shell on Version 7](https://www.in-ulm.de/~mascheck/bourne/v7/), archived by [Sven Mascheck](https://www.in-ulm.de/~mascheck/)
 - [/usr hierarchy](https://www.linuxbase.org/betaspecs/fhs/fhs/ch04.html) from [Filesystem Hierarchy Standard](https://www.linuxbase.org/betaspecs/fhs/fhs/index.html) by [Linux Foundation](https://www.linuxfoundation.org/), Daniel Quinlan, Paul 'Rusty' Russell, Christopher Yeoh
 - [User & Group Names](https://refspecs.linuxbase.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/usernames.html#FTN.AEN26405) from [Linux Standard Base Core Specification](https://refspecs.linuxbase.org/LSB_3.1.1/LSB-Core-generic/LSB-Core-generic/book1.html) by [Free Standards Group](https://en.wikipedia.org/wiki/Free_Standards_Group)
 - [Managing User Accounts](https://docstore.mik.ua/orelly/linux/run/ch05_07.htm) from [Running Linux, Third Edition](https://docstore.mik.ua/orelly/linux/run/index.htm) by Matt Welsh, Matthias Kalle Dalheimer, and Lar Kaufman