tee === [`tee` online tutorial](https://alibaba.github.io/arthas/arthas-tutorials?language=en&id=command-tee) > Similar to the traditional `tee` command, it is used to read standard input data and output its contents into a file. > `tee` will read data from standard input device, output its content to standard output device, and save it as a file. ``` USAGE: tee [-a] [-h] [file] SUMMARY: tee command for pipes. EXAMPLES: sysprop | tee /path/to/logfile | grep java sysprop | tee -a /path/to/logfile | grep java WIKI: https://alibaba.github.io/arthas/tee OPTIONS: -a, --append Append to file -h, --help this help File path ```