Run a program with standard output and standard error copied to files while maintaining the original standard output and standard error as normal.
To run programs from cron, suppressing all output unless the process outputs an error message or has a non-zero exit status whereupon the original output will be written as normal and the exit code will be appended to standard error.
It will do this by default when invoked as cronty, providing an alternative
to cronic but without splitting up the output.
(Also, to do tee(1) with standard output and standard error at the same
time.)
Read the documentation generated from the docs directory.