xemoe/explain.md

Last active August 29, 2015 14:22

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Redirect stdout/stderr

Raw

$(cmd) > /dev/null 2>&1

http://stackoverflow.com/questions/818255/in-the-shell-what-is-21

1 is the default file descriptor for stdout.
2 is the default file descriptor for stderr.
>& is shell syntax for "fold the previous (first) file descriptor into the forthcoming (second) file descriptor."