Differences

This shows you the differences between two versions of the page.

--- kb_linux [2019/09/27 08:53] – [Misc] atl
+++ kb_linux [2023/08/24 03:09] (current) – atl
@@ Line 1: / Line 1: @@
 ====== Boot ======
+===== Interrupt Boot process and change the //root// password =====
+  - **Edit** the kernel boot parameters by pressing **e**
+  - **Go to** the end of the 3linux3 line by pressing **Ctrl+e**, removing //ro crash// and add //rd.break enforcing=0//
+  - **Start** the system by pressing **Ctrl+x**
+  - **Remount** the root of the system:\\  mount -o remount,rw /sysroot
+  - **Switch** to /sysroot:\\  chroot /sysroot
+  - **Reset** the root password
+  - **Enable** SELinux relabeling:\\  touch /.autorelabel
+  - **Exit** the shell
 ===== Grub =====
@@ Line 19: / Line 30: @@
 cf.[[http://thread.gmane.org/gmane.linux.redhat.rhn.satellite.user/216|http://thread.gmane.org/gmane.linux.redhat.rhn.satellite.user/216]]
-====== Misc ======
+==== Failed to download metadata for repo ‘AppStream’ [CentOS] ===
-[[https://www.cyberciti.biz/faq/bash-get-basename-of-filename-or-directory-name/|Bash get basename of filename or directory name]]
+cf.
+[[https://techglimpse.com/failed-metadata-repo-appstream-centos-8/|Failed to download metadata for repo ‘AppStream’ [CentOS]]]
+====== Shell scripting ======
-[[https://www.cyberciti.biz/tips/debugging-shell-script.html|How To Debug a Bash Shell Script Under Linux or UNIX]]
+  * [[https://www.shellcheck.net/|https://www.shellcheck.net/]], finds bugs in your shell scripts
+  * [[https://www.shellscript.sh/|https://www.shellscript.sh/]], The Shell Scripting Tutorial
+  * [[https://www.davidpashley.com/articles/writing-robust-shell-scripts/|https://www.davidpashley.com/articles/writing-robust-shell-scripts/]], Writing Robust Bash Shell Scripts
+  * [[http://www.yoone.eu/articles/2-good-practices-for-writing-shell-scripts.html|http://www.yoone.eu/articles/2-good-practices-for-writing-shell-scripts.html]], Good practices for writing shell scripts \\  [[https://www.cyberciti.biz/faq/unix-linux-bash-find-out-the-exit-codes-of-all-piped-commands/|https://www.cyberciti.biz/faq/unix-linux-bash-find-out-the-exit-codes-of-all-piped-commands/]], Bash Find out the exit codes of all piped commands
-[[http://How To Use Bash Parameter Substitution Like A Pro|How To Use Bash Parameter Substitution Like A Pro]]
-[[https://fr.wikipedia.org/wiki/Fork_bomb|Fork bomb]]
+====== Misc ======
-[[https://arkit.co.in/bash-functions-linux-shell-scripting-tutorial/|Bash Functions Linux Shell Scripting Tutorial]]
-[[https://www.ostechnix.com/check-installed-linux-kernels/|How To Check Installed Linux Kernels]]
-[[http://www.techsupportalert.com/content/tips-and-tricks-linux-mint-after-installation-mint-18-mate-edition.htm|Tips and Tricks for Linux Mint after Installation [Mint 18 - MATE Edition] | Gizmo's Freeware]]
-[[https://www.ostechnix.com/find-oldest-file-directory-tree-linux/|Find The Oldest File In A Directory Tree In Linux]]
-[[https://www.ostechnix.com/find-number-cpu-cores-commandline-linux/|How To Find Number Of CPU Cores From Commandline In Linux]]
-[[https://www.ostechnix.com/find-rebooted-linux-system/|How To Find Who Rebooted The Linux System?]]
-[[https://www.ostechnix.com/easy-way-protect-files-accidental-deletion-linux/|An Easy Way to Protect Files From Accidental Deletion In Linux]]
+  * [[https://linoxide.com/linux-command/script-command-recorder/|How to Use "Script" Command To Record Linux Terminal Session]]
+  * [[https://www.cyberciti.biz/faq/bash-get-basename-of-filename-or-directory-name/|Bash get basename of filename or directory name]]
+  * [[https://www.cyberciti.biz/tips/debugging-shell-script.html|How To Debug a Bash Shell Script Under Linux or UNIX]]
+  * [[http://How To Use Bash Parameter Substitution Like A Pro|How To Use Bash Parameter Substitution Like A Pro]]
+  * [[https://fr.wikipedia.org/wiki/Fork_bomb|Fork bomb]]
+  * [[https://arkit.co.in/bash-functions-linux-shell-scripting-tutorial/|Bash Functions Linux Shell Scripting Tutorial]]
+  * [[https://www.ostechnix.com/check-installed-linux-kernels/|How To Check Installed Linux Kernels]]
+  * [[http://www.techsupportalert.com/content/tips-and-tricks-linux-mint-after-installation-mint-18-mate-edition.htm|Tips and Tricks for Linux Mint after Installation [Mint 18 - MATE Edition] | Gizmo's Freeware]]
+  * [[https://www.ostechnix.com/find-oldest-file-directory-tree-linux/|Find The Oldest File In A Directory Tree In Linux]]
+  * [[https://www.ostechnix.com/find-number-cpu-cores-commandline-linux/|How To Find Number Of CPU Cores From Commandline In Linux]]
+  * [[https://www.ostechnix.com/find-rebooted-linux-system/|How To Find Who Rebooted The Linux System?]]
+  * [[https://www.ostechnix.com/easy-way-protect-files-accidental-deletion-linux/|An Easy Way to Protect Files From Accidental Deletion In Linux]]