I want to execute a command, have the output of that command get gzip'd on the fly, and also echo/tee out the output of that command.
i.e., something like:
echo "hey hey, we're the monkees" | gzip --stdout > my_log.gz
Except when the line executes, I want to see this on standard out:
hey hey, we're the monkees
Another way (assuming a shell like bash
or zsh
):
echo "hey hey, we're the monkees" | tee >(gzip --stdout > my_log.gz)
The admittedly strange >()
syntax basically does the following:
/tmp/
)()
and bind the FIFO to stdin on that subcommandWhat tee
ends up seeing, then, is something like:
tee /tmp/arjhaiX4
All gzip
sees is its standard input.
For Bash, see man bash
for details. It's in the section on redirection. For Zsh, see man zshexpn
under the heading "Process Substitution."
As far as I can tell, the Korn Shell, variants of the classic Bourne Shell (including ash and dash), and the C Shell don't support this syntax.