#tee invocation
#tee usage: tee [option] FILE tee copies standard input to stdio and to a given FILE
[Note if no file is specified, tee creates a file and writes to said file]
#[options]
-a,--append (append stdio to file without overwriting contents)
-i,--ignore-interrupts (ignores signal interrupts)
#Where to find this 'info tee invocation'