diff --git a/fish/functions/cat.fish b/fish/functions/cat.fish
index 936a94b..bb4419e 100644
--- a/fish/functions/cat.fish
+++ b/fish/functions/cat.fish
@@ -1,4 +1,7 @@
-function cat --wraps='bat -pn' --wraps='bat -pn --pager=never' --description 'alias cat bat -pn --pager=never'
-  bat -pn --pager=never $argv
-        
+function cat
+    if test -f /usr/bin/bat
+        /usr/bin/bat -p --pager=never $argv
+    else
+        /bin/cat $argv
+    end
 end
diff --git a/fish/functions/ll.fish b/fish/functions/ll.fish
index a5caf83..09dfb45 100644
--- a/fish/functions/ll.fish
+++ b/fish/functions/ll.fish
@@ -1,3 +1,7 @@
-function ll --wraps=ls --wraps='eza -l --git' --wraps='eza --icons=always -l --git' --description 'alias ll eza --icons=always -l --git'
-    eza --icons=always -l --git $argv
+function ll
+    if test -f /usr/bin/eza
+        /usr/bin/eza --icons=always -l --git $argv
+    else
+        /bin/ls -l $argv
+    end
 end
diff --git a/fish/functions/ls.fish b/fish/functions/ls.fish
index cf6cab1..10485ce 100644
--- a/fish/functions/ls.fish
+++ b/fish/functions/ls.fish
@@ -1,3 +1,7 @@
-function ls --wraps=eza --description 'alias ls eza'
-    eza $argv
+function ls
+    if test -f /usr/bin/eza
+        /usr/bin/eza $argv
+    else 
+        /bin/ls --color=auto $argv
+    end
 end
diff --git a/fish/functions/tree.fish b/fish/functions/tree.fish
index 25434eb..448de35 100644
--- a/fish/functions/tree.fish
+++ b/fish/functions/tree.fish
@@ -1,3 +1,7 @@
-function tree --wraps='eza -T' --description 'alias tree eza -T'
-  eza -T $argv
+function tree
+    if test -f /usr/bin/eza
+        /usr/bin/eza -T $argv
+    else
+        /bin/tree $argv
+    end
 end