- Copy standard input to each file, and also to standard output:
echo "example" | tee path/to/file
- Append to the given files, do not overwrite:
echo "example" | tee -a path/to/file
- Print standard input to the terminal, and also pipe it into another program for further processing:
echo "example" | tee /dev/tty | xargs printf "[%s]"
- Create a directory called "example", count the number of characters in "example" and write "example" to the terminal:
echo "example" | tee >(xargs mkdir) >(wc -c)
tee [OPTION]... [FILE]...
Copy standard input to each FILE, and also to standard output.
- -a, --append
append to the given FILEs, do not overwrite
- -i, --ignore-interrupts
ignore interrupt signals
diagnose errors writing to non pipes
set behavior on write error. See MODE below
display this help and exit
output version information and exit
MODE determines behavior with write errors on the outputs
diagnose errors writing to any output
diagnose errors writing to any output not a pipe
exit on error writing to any output
exit on error writing to any output not a pipe
The default MODE for the -p option is 'warn-nopipe'. The default operation when --output-error is not specified, is to exit immediately on error writing to a pipe, and diagnose errors writing to non pipe outputs.
Written by Mike Parker, Richard M. Stallman, and David MacKenzie.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
Copyright © 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Full documentation <https://www.gnu.org/software/coreutils/tee>
or available locally via: info '(coreutils) tee invocation'
libpipeline(3), pee(1), rc(1), tee(2).