Run a command trusting that it will succeed, squelching stdout and stderr. If errors do occur, i.e. the command exists with a non-zero exit code, the full stdout and stderr output will be printed after that error has occurred.

trusting requires Python 3.5 or greater.

Assuming trusting is somewhere in your PATH,

$ trusting pdflatex doc.tex

will run pdflatex doc.tex without all that verbose output you don't want to see.

Because stdin is set to /dev/null, user input for the running commands are not supported.