arthas/tutorials/katacoda/command-tee-en/tee.md

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.

tee -h{{execute T2}}

 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>                                    File path

Examples

Store sysprop execution result into /tmp/logfile

sysprop | tee /tmp/logfile{{execute T2}}

Check /tmp/logfile:

cat /tmp/logfile{{execute T2}}

Append sysprop matching java result into /tmp/logfile

sysprop | grep java | tee -a /path/to/logfile{{execute T2}}

Check /tmp/logfile:

cat /tmp/logfile{{execute T2}}