Difference between revisions of "Os.execute"
From GiderosMobile
(added example from rrraptor) |
|||
Line 19: | Line 19: | ||
if application:getDeviceInfo() == "Windows" then | if application:getDeviceInfo() == "Windows" then | ||
local lfs = require "lfs" | local lfs = require "lfs" | ||
+ | -- go to user/pictures folder | ||
lfs.chdir(application:get("directory", "pictures")) | lfs.chdir(application:get("directory", "pictures")) | ||
− | -- | + | -- check if "my_new_folder" directory exists in user/pictures folder |
local islfsdir = lfs.chdir(lfs.currentdir().."\\".."my_new_folder") | local islfsdir = lfs.chdir(lfs.currentdir().."\\".."my_new_folder") | ||
if not islfsdir then | if not islfsdir then | ||
− | -- if | + | -- if doesn't exist then create it and go to it |
lfs.mkdir(lfs.currentdir().."\\".."my_new_folder") | lfs.mkdir(lfs.currentdir().."\\".."my_new_folder") | ||
lfs.chdir(lfs.currentdir().."\\".."my_new_folder") | lfs.chdir(lfs.currentdir().."\\".."my_new_folder") | ||
end | end | ||
end | end | ||
− | -- opens the current lfs dir | + | -- opens a window of the current lfs dir |
os.execute("start "..lfs.currentdir()) | os.execute("start "..lfs.currentdir()) | ||
</source> | </source> | ||
{{Os}} | {{Os}} |
Revision as of 14:41, 26 December 2020
Available since: Gideros 2011.6
Class: os
Description
This function is equivalent to the C function system. It passes command to be executed by an operating system shell. It returns a status code which is system-dependent. If command is absent then it returns nonzero if a shell is available and zero otherwise.
(number) = os.execute(command)
Parameters
command: (string) command to execute
Return values
Returns (number) status code
Example
if application:getDeviceInfo() == "Windows" then
local lfs = require "lfs"
-- go to user/pictures folder
lfs.chdir(application:get("directory", "pictures"))
-- check if "my_new_folder" directory exists in user/pictures folder
local islfsdir = lfs.chdir(lfs.currentdir().."\\".."my_new_folder")
if not islfsdir then
-- if doesn't exist then create it and go to it
lfs.mkdir(lfs.currentdir().."\\".."my_new_folder")
lfs.chdir(lfs.currentdir().."\\".."my_new_folder")
end
end
-- opens a window of the current lfs dir
os.execute("start "..lfs.currentdir())