Tee - I/O Multiplexer#

Read standard input and write to both standard output and one or more files simultaneously. Useful for logging command output while monitoring progress.

Usage#

bash

command | tee-tool [options] <file...>

Options#

• -a: Append to files instead of overwriting
• -i: Ignore interrupt signals

Examples#

bash

echo "data" | tee-tool output.txt
ls -la | tee-tool -a log.txt
make 2>&1 | tee-tool build.log