[threePointFive]

Moreutils has a great command `chronic` which is a wrapper command like `time` or `sudo`, ie. you just run `chronic <command>`. It'll supress stdout and stderr until the command exits at which point it will print only if the exit code was non-zero.

[stevekemp]

I copied the same idea in my static collection of sysadmin utilities:

https://github.com/skx/sysbox/