From be4c3c35f93abc144adf3a148cb9f6467877c132 Mon Sep 17 00:00:00 2001
From: Ghislain Durif <gd.dev@libertymail.net>
Date: Wed, 11 Oct 2023 09:45:06 +0200
Subject: [PATCH] fix license information + fix some link in 1st chapter

---
 10_network_and_ssh.Rmd          | 4 +++-
 11_install_system_programs.Rmd  | 4 +++-
 12_virtualization.Rmd           | 4 +++-
 1_understanding_a_computer.Rmd  | 4 ++--
 2_using_the_ifb_cloud.Rmd       | 2 --
 3_first_steps_in_a_terminal.Rmd | 3 ---
 4_unix_file_system.Rmd          | 2 --
 5_users_and_rights.Rmd          | 4 +++-
 6_unix_processes.Rmd            | 6 +++---
 7_streams_and_pipes.Rmd         | 4 +++-
 8_text_manipulation.Rmd         | 4 +++-
 9_batch_processing.Rmd          | 4 +++-
 12 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/10_network_and_ssh.Rmd b/10_network_and_ssh.Rmd
index a02c253..327645b 100644
--- a/10_network_and_ssh.Rmd
+++ b/10_network_and_ssh.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Learn basics of ssh connection in GNU/Linux
 
diff --git a/11_install_system_programs.Rmd b/11_install_system_programs.Rmd
index df8f514..983bb53 100644
--- a/11_install_system_programs.Rmd
+++ b/11_install_system_programs.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Learn how to install programs in GNU/Linux
 
diff --git a/12_virtualization.Rmd b/12_virtualization.Rmd
index 863e14b..935ed75 100644
--- a/12_virtualization.Rmd
+++ b/12_virtualization.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Learn how to build virtual images or container of a system
 
diff --git a/1_understanding_a_computer.Rmd b/1_understanding_a_computer.Rmd
index 4e70685..3cc49f7 100644
--- a/1_understanding_a_computer.Rmd
+++ b/1_understanding_a_computer.Rmd
@@ -59,7 +59,7 @@ Objective: understand the relations between the different components of a comput
 
 ## As simple as a Turing machine ?
 
-![universal_truing_machine](./img/universal_truing_machine.png){width=100%}
+![Universal Truing Machine](./img/universal_truing_machine.png){width=100%}
 
 - A tape divided into cells, one next to the other. Each cell contains a symbol from some finite alphabet.
 - A head that can read and write symbols on the tape and move the tape left and right one (and only one) cell at a time.
@@ -106,7 +106,7 @@ Disadvantages:
 
 > The kernel provides the most basic level of control over all of the computer's hardware devices. It manages memory access for programs in the RAM, it determines which programs get access to which hardware resources, it sets up or resets the CPU's operating states for optimal operation at all times, and it organizes the data for long-term non-volatile storage with file systems on such media as disks, tapes, flash memory, etc.
 
-[Kernel](./img/220px-Kernel_Layout.svg.png){width=100%}
+![Kernel](./img/220px-Kernel_Layout.svg.png){width=100%}
 
 ---
 
diff --git a/2_using_the_ifb_cloud.Rmd b/2_using_the_ifb_cloud.Rmd
index ebebcca..76457c5 100644
--- a/2_using_the_ifb_cloud.Rmd
+++ b/2_using_the_ifb_cloud.Rmd
@@ -16,8 +16,6 @@ knitr::opts_chunk$set(comment = NA)
 <img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
 </a>
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
-
 Objective: Start and connect to an appliance on the IFB cloud
 
 Instead of working on your computer where you don't have an Unix-like OS or have limited right, we are going to use the [IFB (Institut Français de bio-informatique) Cloud]( https://biosphere.france-bioinformatique.fr/).
diff --git a/3_first_steps_in_a_terminal.Rmd b/3_first_steps_in_a_terminal.Rmd
index c543a6a..a4b7be5 100644
--- a/3_first_steps_in_a_terminal.Rmd
+++ b/3_first_steps_in_a_terminal.Rmd
@@ -16,9 +16,6 @@ knitr::opts_chunk$set(comment = NA)
 <img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
 </a>
 
-
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
-
 Objective: learn to use basic terminal command
 
 Congratulations you are now connected on your VM !
diff --git a/4_unix_file_system.Rmd b/4_unix_file_system.Rmd
index 8dd6952..4de19a2 100644
--- a/4_unix_file_system.Rmd
+++ b/4_unix_file_system.Rmd
@@ -16,8 +16,6 @@ knitr::opts_chunk$set(comment = NA)
 <img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
 </a>
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
-
 Objective: Understand how files are organized in Unix
 
 > On a UNIX system, everything is a file ; if something is not a file, it is a process.
diff --git a/5_users_and_rights.Rmd b/5_users_and_rights.Rmd
index 559b1d6..c4339b3 100644
--- a/5_users_and_rights.Rmd
+++ b/5_users_and_rights.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Understand how rights works in GNU/Linux
 
diff --git a/6_unix_processes.Rmd b/6_unix_processes.Rmd
index 1fabd06..999f9ab 100644
--- a/6_unix_processes.Rmd
+++ b/6_unix_processes.Rmd
@@ -12,9 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-## Unix Processes
-
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Understand how process works in GNU/Linux
 
diff --git a/7_streams_and_pipes.Rmd b/7_streams_and_pipes.Rmd
index ad1cac8..f86a5ce 100644
--- a/7_streams_and_pipes.Rmd
+++ b/7_streams_and_pipes.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Understand function of streams and pipes in Unix systems
 
diff --git a/8_text_manipulation.Rmd b/8_text_manipulation.Rmd
index bf297dd..08c18eb 100644
--- a/8_text_manipulation.Rmd
+++ b/8_text_manipulation.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Learn simple ways to work with text file in Unix
 
diff --git a/9_batch_processing.Rmd b/9_batch_processing.Rmd
index 92ba7b3..5ecaf3a 100644
--- a/9_batch_processing.Rmd
+++ b/9_batch_processing.Rmd
@@ -12,7 +12,9 @@ knitr::opts_chunk$set(echo = TRUE)
 knitr::opts_chunk$set(comment = NA)
 ```
 
-[![cc_by_sa](./img/cc_by_sa.png)](http://creativecommons.org/licenses/by-sa/4.0/)
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+<img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" />
+</a>
 
 Objective: Learn basics of batch processing in GNU/Linux
 
-- 
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