diff --git a/.config/zsh/.zshrc b/.config/zsh/.zshrc
index c64c8e52..54039885 100644
--- a/.config/zsh/.zshrc
+++ b/.config/zsh/.zshrc
@@ -1,4 +1,4 @@
-# Config for the Zoomer Shell
+#Config for the Zoomer Shell
 
 # Enable colors and change prompt:
 autoload -U colors && colors	# Load colors
@@ -9,7 +9,7 @@ stty stop undef		# Disable ctrl-s to freeze terminal.
 # History in cache directory:
 HISTSIZE=10000
 SAVEHIST=10000
-HISTFILE=~/.cache/zsh/history
+HISTFILE=${XDG_CONFIG_HOME:-$HOME/.config}/zsh/history
 
 # Load aliases and shortcuts if existent.
 [ -f "${XDG_CONFIG_HOME:-$HOME/.config}/shortcutrc" ] && source "${XDG_CONFIG_HOME:-$HOME/.config}/shortcutrc"
diff --git a/.local/bin/delete_certain_known_hosts b/.local/bin/delete_certain_known_hosts
new file mode 100755
index 00000000..a92c2409
--- /dev/null
+++ b/.local/bin/delete_certain_known_hosts
@@ -0,0 +1,17 @@
+#!/bin/bash
+# Deletes certain lines of ~/.ssh/known_hosts
+known_hosts_path=~/.ssh/known_hosts
+lines_in_known_hosts=$(wc -l "$known_hosts_path" | awk '{print $1}')
+IFS=' '
+deduped_args=$(echo "$@" | xargs -n1 | sort -nu | xargs)
+read -r -a delete_these_lines <<< "$deduped_args"
+lines_to_delete=""
+for var in "${delete_these_lines[@]}"; do
+if [[ "$var" -gt "$lines_in_known_hosts" ]]; then
+	echo "$var isnt valid line in $lines_in_known_hosts line $known_hosts_path"
+else
+	lines_to_delete+="${var}d;"
+fi
+done
+sed -i "$lines_to_delete" "$known_hosts_path"
+echo "Deleted lines $(echo $(echo $lines_to_delete | sed 's/d;/, /g') | sed 's/.$//' )"