Perl's system() function has two modes: if you give one argument, it will have this string parsed by a "shell"; if you give an array, it will use the first one as program name, and directly pass the following things to the program without the process by a "shell"

We know that the second mode is more safe, as it avoids the arguments with spaces being splitted into multiple arguments. So we should prefer the second mode. However, I don't know how to use ">file" in the second mode. If you provide it, it will be transferred into the program, not performing an output redirection. For example:

# This works
system("cat foo >bar");

# ">bar" being passed to cat as an argument
# and there's no file named ">bar"
system('cat', 'foo', '>bar');

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Thanks!

In reply to system() and output redirect by llancet

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