diff --git a/examples/vagrant/beowulf cluster/mpi_hosts.txt b/examples/vagrant/beowulf cluster/mpi_hosts.txt
index 26dd288..ac8e703 100755
--- a/examples/vagrant/beowulf cluster/mpi_hosts.txt	
+++ b/examples/vagrant/beowulf cluster/mpi_hosts.txt	
@@ -1,3 +1,3 @@
 192.168.56.201
 192.168.56.202
-192.168.56.203
\ No newline at end of file
+192.168.56.203
diff --git a/examples/vagrant/beowulf cluster/ssh_config.txt b/examples/vagrant/beowulf cluster/ssh_config.txt
index 2fb4547..adfaac3 100755
--- a/examples/vagrant/beowulf cluster/ssh_config.txt	
+++ b/examples/vagrant/beowulf cluster/ssh_config.txt	
@@ -1,3 +1,3 @@
 Host  192.168.56.*
 	IdentityFile           ~/.ssh/id_ed25519
-	StrictHostKeyChecking  no
\ No newline at end of file
+	StrictHostKeyChecking  no
diff --git a/knowledge base/asdf.md b/knowledge base/asdf.md
index 3c0db86..a25c806 100644
--- a/knowledge base/asdf.md	
+++ b/knowledge base/asdf.md	
@@ -131,7 +131,7 @@ Stores the global (`~/.tool-versions`) or local (`./.tool-versions`) settings fo
 ```txt
 # Multiple versions can be set by separating them with a space.
 # plugin_name  default_version  first_fallback_version ... nth_fallback_version
-python system 3.11.0 3.10.9 3.9.7 
+python system 3.11.0 3.10.9 3.9.7
 ```
 
 The versions listed in such file can be:
diff --git a/knowledge base/bash.md b/knowledge base/bash.md
index 79bd00b..7f42b81 100644
--- a/knowledge base/bash.md	
+++ b/knowledge base/bash.md	
@@ -18,7 +18,7 @@
 ## TL;DR
 
 ```sh
-# Declare arrays. 
+# Declare arrays.
 ARRAY=(
   "first_element"
   "second_element" "nth_element"
diff --git a/knowledge base/optimize battery on a linux system.md b/knowledge base/optimize battery on a linux system.md
index 160471a..e9b497d 100644
--- a/knowledge base/optimize battery on a linux system.md	
+++ b/knowledge base/optimize battery on a linux system.md	
@@ -23,7 +23,7 @@ sudo 'powertop'
 
 ```sh
 $ sudo systemd-analyze
-Startup finished in 13.129s (firmware) + 5.413s (loader) + 1.746s (kernel) + 7.903s (userspace) = 28.192s 
+Startup finished in 13.129s (firmware) + 5.413s (loader) + 1.746s (kernel) + 7.903s (userspace) = 28.192s
 graphical.target reached after 1.239s in userspace
 
 $ sudo systemd-analyze critical-chain
diff --git a/knowledge base/ssh.md b/knowledge base/ssh.md
index f570e8c..2ab4e5d 100644
--- a/knowledge base/ssh.md	
+++ b/knowledge base/ssh.md	
@@ -265,7 +265,7 @@ Usage:
 sshfs \
   -o 'auto_cache,reconnect,defer_permissions,noappledouble,volname=Data'
   'user@nas.lan:/path/to/remote/dir' \
-  '/path/to/local/dir' 
+  '/path/to/local/dir'
 ```
 
 ### Installation