added a usage text to exportcomponent

2019-12-25 16:50:52 +11:00 · 2019-12-25 16:50:52 +11:00 · f896547ea9
parent f7cc00822a
commit f896547ea9
1 changed files with 4 additions and 0 deletions
--- a/RPC/OpenOS/usr/bin/exportcomponent.lua
+++ b/RPC/OpenOS/usr/bin/exportcomponent.lua
@ -2,6 +2,10 @@ local component = require "component"
 local rpc = require "rpc"
 local tA = {...}

+if #tA < 1 then
+ print("Usage: exportcomponent <component address> [component address...]")
+end
+
 for k,v in ipairs(tA) do
 local px = component.proxy(component.get(v))
 print(px.type.."_"..px.address)