diff --git a/big_files.sh b/big_files.sh
new file mode 100644
index 0000000..f10d803
--- /dev/null
+++ b/big_files.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# @author Kevin Veen-Birkenbach
+# shellcheck source=/dev/null # Deactivate SC1090
+source "$(dirname "$(readlink -f "${0}")")/../../base.sh" || (echo "Loading base.sh failed." && exit 1)
+info "Searching for files which are in \"$HOME\" and bigger then 100MB..."
+find ~ -type f -size +100M -exec ls -lh {} \;
diff --git a/false_chown.sh b/false_chown.sh
new file mode 100644
index 0000000..8305c1c
--- /dev/null
+++ b/false_chown.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# @author Kevin Veen-Birkenbach
+# shellcheck source=/dev/null # Deactivate SC1090
+source "$(dirname "$(readlink -f "${0}")")/../../base.sh" || (echo "Loading base.sh failed." && exit 1)
+info "Searching for files which are in \"$HOME\" but don't belong to user \"$USER\"..."
+sudo find "$HOME" ! -user "$USER"
diff --git a/file_duplicates.sh b/file_duplicates.sh
new file mode 100644
index 0000000..9e69d57
--- /dev/null
+++ b/file_duplicates.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# @author Kevin Veen-Birkenbach
+# shellcheck source=/dev/null # Deactivate SC1090
+source "$(dirname "$(readlink -f "${0}")")/../../base.sh" || (echo "Loading base.sh failed." && exit 1)
+info "Checking relevant home folders for duplicated files..."
+fdupes -r "$HOME/Documents/" "$HOME/Downloads/" "$HOME/Images/" "$HOME/Desktop/" "$HOME/Music/" "$HOME/Pictures/" "$HOME/Videos"
diff --git a/java_versions.sh b/java_versions.sh
new file mode 100644
index 0000000..e083f2d
--- /dev/null
+++ b/java_versions.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# @author Kevin Veen-Birkenbach
+# shellcheck source=/dev/null # Deactivate SC1090
+source "$(dirname "$(readlink -f "${0}")")/../../base.sh" || (echo "Loading base.sh failed." && exit 1)
+info "Showing the installed Java versions..." &&
+archlinux-java status
diff --git a/linux_kernel.sh b/linux_kernel.sh
new file mode 100644
index 0000000..0bc1b3a
--- /dev/null
+++ b/linux_kernel.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# @author Kevin Veen-Birkenbach
+# shellcheck source=/dev/null # Deactivate SC1090
+source "$(dirname "$(readlink -f "${0}")")/../../base.sh" || (echo "Loading base.sh failed." && exit 1)
+info "Linux-Kernel: $(uname -r)"
diff --git a/not_encrypted_ssh_keys.sh b/not_encrypted_ssh_keys.sh
new file mode 100644
index 0000000..d39191d
--- /dev/null
+++ b/not_encrypted_ssh_keys.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# @see https://stackoverflow.com/questions/32408820/how-to-list-files-and-match-first-line-in-bash-script
+# @see https://unix.stackexchange.com/questions/298590/using-find-non-recursively
+# @see https://security.stackexchange.com/questions/129724/how-to-check-if-an-ssh-private-key-has-passphrase-or-not
+find "$HOME/.ssh" -maxdepth 1 -type f -print0 | while IFS= read -r -d $'\0' file; do
+  if [[ $(head -n1 "$file") == "-----BEGIN OPENSSH PRIVATE KEY-----" ]]; then
+      echo "Test file: $file"
+      ssh-keygen -y -P "" -f "$file"
+  fi
+done