Find distro in provision_linux

provision_linux

@@ -3,12 +3,16 @@
 ### Config ###
 
 set -g cmd_func_prefix 'provision'
+set -g distro
 
-if test -z "$distro"
-    set -g distro 'arch'
+for line in (cat /etc/os-release)
+    set -l items (string split --max 1 '=' $line)
+
+    if test $items[1] = 'ID'
+        set distro $items[2]
+    end
 end
 
-
 ### Commands ###
 # Add, edit, and remove commands freely below.
 # To add a command simply create a function with this naming scheme: {run_func_prefix}_{name}.