Difference between revisions of "Os.execute"

From GiderosMobile
(added example from rrraptor)
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__NOTOC__
 
__NOTOC__
<languages />
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'''Available since:''' Gideros 2011.6<br/>
'''<translate>Available since</translate>:''' Gideros 2011.6<br/>
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'''Class:''' [[Special:MyLanguage/os|os]]<br/>
'''<translate>Class</translate>:''' [[Special:MyLanguage/os|os]]<br/>
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=== <translate>Description</translate> ===
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=== Description ===
<translate>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.</translate>
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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.
 
<source lang="lua">
 
<source lang="lua">
 
(number) = os.execute(command)
 
(number) = os.execute(command)
 
</source>
 
</source>
=== <translate>Parameters</translate> ===
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'''command''': (string) <translate>command to execute</translate> <br/>
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=== Parameters ===
=== <translate>Return values</translate> ===
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'''command''': (string) command to execute <br/>
'''<translate>Returns</translate>''' (number) <translate>status code</translate><br/>
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 +
=== Return values ===
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'''Returns''' (number) status code<br/>
 +
 
 +
=== Example ===
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<source lang="lua">
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if application:getDeviceInfo() == "Windows" then
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local lfs = require "lfs"
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lfs.chdir(application:get("directory", "pictures"))
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-- checks if "my_new_folder" directory exists
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local islfsdir = lfs.chdir(lfs.currentdir().."\\".."my_new_folder")
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if not islfsdir then
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-- if not exist then create it and go to it
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lfs.mkdir(lfs.currentdir().."\\".."my_new_folder")
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lfs.chdir(lfs.currentdir().."\\".."my_new_folder")
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end
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end
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-- opens the current lfs dir
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os.execute("start "..lfs.currentdir())
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</source>
  
 
{{Os}}
 
{{Os}}

Revision as of 14:37, 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"
	lfs.chdir(application:get("directory", "pictures"))
	-- checks if "my_new_folder" directory exists
	local islfsdir = lfs.chdir(lfs.currentdir().."\\".."my_new_folder")
	if not islfsdir then
		-- if not 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 the current lfs dir
os.execute("start "..lfs.currentdir())