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TEE(1) User Commands TEE(1)


tee - read from standard input and write to standard output and files


tee [OPTION]... [FILE]...


Copy standard input to each FILE, and also to standard output.

append to the given FILEs, do not overwrite
ignore interrupt signals
operate in a more appropriate MODE with 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'. With "nopipe" MODEs, exit immediately if all outputs become broken pipes. 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.


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Copyright © 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.


Full documentation <>
or available locally via: info '(coreutils) tee invocation'

March 2024 GNU coreutils 9.4