On 25/09/17 11:08, Qu Wenruo wrote:
What about redirecting stdout to /dev/null and redirecting stderr to
mail if return value is not 0?
s/if return value is not 0/if return value is 0/.
The main point is, if btrfs returns 0, then nothing to worry about.
(Unless there is a bug, even in that case keep an eye on stderr should
be enough to catch that)
Redirection to /dev/null will work. However,
1) It will always looks suspicious. grep -v with expected message is at
least clear about its intent and consequences.
2) Although shorter than grep -v, it will still take space in shell
scripts and force one to remember btrfs commands one has to add it
after. This is already inconvenient enough to want a fix.
--
With Best Regards,
Marat Khalili
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