Run Shell Command with custom input

Question

How can i run a shell command in objective c with a variable E.G system("thisCMD thisParam %@", username);

David · Accepted Answer · 2010-08-12 04:08:03Z

1

[NSTask launchedTaskWithLaunchPath:@"thisCMD" arguments:[NSArray arrayWithObject:username]];

Or if username isn't already a string:

[NSTask launchedTaskWithLaunchPath:@"thisCMD" arguments:[NSArray arrayWithObject:[username description]]];

Or if you want to be able to change the format specifier for each argument to something more complicated later:

[NSTask launchedTaskWithLaunchPath:@"thisCMD" arguments:[NSArray arrayWithObject:[NSString stringWithFormat:@"%@", username]]];

answered Aug 12, 2010 at 4:08

David

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2 Comments

lets say the command someCommand usernameShouldBeHere anotherparam how do i do it then?

Change thisCMD to someCommand and construct the NSArray using the arrayWithObjects constructor.