Re: os.system question

kyosohma@xxxxxxxxx wrote:
On Dec 28, 12:57 pm, stanleyxu <no_re...@xxxxxxxxxxxxx> wrote:
To note this problem occurs when debugging script in IDLE editor.
When I double click on my_script.py, all outputs will be printed in one
console.

--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/> stanleyxu2005
/_/ \_\


Why are you using os.system for these commands in the first place? You
should be using the os and shutil modules instead as they would be
more cross-platform friendly.

Something like this:

# untested
for new_folder, old_folder in folder_array:
os.mkdir(new_folder)
shutil.copytree(old_folder, new_folder)


Adjust the path as needed in the mkdir call.

See shutil's docs for more info:
http://docs.python.org/lib/module-shutil.html

And here's some folder manipulation docs:
http://effbot.org/librarybook/os.htm

By the by, the subprocess module is supposed to be used in place of
the os.system and os.popen* calls: http://docs.python.org/lib/module-subprocess.html

Mike

Thanks Mike,

you have provided another option.

But my question has not been answered yet. The reason, why I use os.system(), is that I want to avoid accident file deletion by writing a script. My real script looks like:

# 1. Funtion to execute a command in DOS-console
def execCommand(cmd):
if DEBUG_MODE:
print 'DOS> ' + cmd;
else:
os.system(cmd);

# 2.1 Creates temp folder. Removes it first, if it exists.
if os.path.exists(tmp_folder):
execCommand('RD "' + tmp_folder + '" /S /Q');
execCommand('MD "' + tmp_folder + '"');

# 2.2 Copies all files to the temp folder, that are going to be put in package.
for source_folder, dest_folder in folders_array:
if not os.path.exists(dest_folder):
execCommand('MD "' + dest_folder + '"');
execCommand('XCOPY \"' + source_folder + '" "' + dest_folder + '" /Y');


The benefit is that, when I set DEBUG_MODE=True, I can see what will be executed. So that I can make sure that my script will not delete any other important files by accident.

--
___
oo // \\
(_,\/ \_/ \ Xu, Qian
\ \_/_\_/> stanleyxu2005
/_/ \_\
.

Relevant Pages

  • Re: Will Linux become as vulnerable as MS ??
    ... > beeing vulnerable to viruses. ... > that they know are executable, and execute intentionally. ... >> Linux, each distro is a little different, and even within the distro, ... > Since clicking on a script is easier than typing it's name, ...
    (comp.os.linux.security)
  • Re: [Full-Disclosure] ColdFusion cross-site scripting security vulnerability of an error page
    ... > execute the arbitrary javascript and HTML code which the attacker ... > It is possible to display the contents transmitted from the client ... > cross-site scripting attack can be executed. ... the script will be executed when the script for an attack ...
    (Full-Disclosure)
  • CGIscript.net - csMailto.cgi - Remote Command Execution
    ... CGIscript.net - csMailto.cgi - Remote Command ... csMailto is a perl cgi formmail script developed by ... execute command on server and mail output to anyone ...
    (Bugtraq)
  • Re: Extracting data from an XML to put into a constant
    ... ExecuteGlobal "Const cnUB = 9" ... The following script causes the same error. ... Ordinary variables and constants defined with execute statements have ... no value until their defining statement is executed at run time. ...
    (microsoft.public.scripting.vbscript)
  • Re: HTTPContext Session and worker thread (Fire and Forget)
    ... Once the page is loaded on the client side, make the request via script ... To kick of the job you insert record into tblJobs with MessageIn having ... not execute job cause it was grabbed by other pooling thread between step 1 ...
    (microsoft.public.dotnet.framework.aspnet)