X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fsys%2Fluasrc%2Fsys.lua;h=e27e1c4e8ae6a0a1f180d695682fd86e1bc0d9bf;hp=a53db937c70e82bd1cda0b76ef28dfacee9eca00;hb=aa0617e4edd3fa2f3dfb464c10b6d73214b79283;hpb=9243e20e27010a1d5754506774a3d813c7d5b8b0

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index a53db937c..e27e1c4e8 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -41,6 +41,20 @@ local tonumber, ipairs, pairs = tonumber, ipairs, pairs
 --- LuCI Linux and POSIX system utilities.
 module "luci.sys"
 
+--- Execute a given shell command and return the error code
+-- @class		function
+-- @name		call
+-- @param 		...		Command to call
+-- @return		Error code of the command
+function call(...)
+	return os.execute(...) / 256
+end
+
+--- Execute a given shell command and capture its standard output
+-- @class		function
+-- @name		exec
+-- @param command	Command to call
+-- @return			String containg the return the output of the command
 exec = luci.util.exec
 
 --- Invoke the luci-flash executable to write an image to the flash memory.