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

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类似传统的tee命令 用于读取标准输入的数据,并将其内容输出成文件。

tee指令会从标准输入设备读取数据将其内容输出到标准输出设备同时保存成文件。

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://arthas.aliyun.com/doc/tee

 OPTIONS:
 -a, --append                              Append to file
 -h, --help                                this help
 <file>                                    File path

命令示范

将sysprop命令执行结果另外存储在/tmp/logfile

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

查看/tmp/logfile文件:

cat /tmp/logfile{{execute T2}}

将sysprop命令执行结果匹配java后另外追加在/tmp/logfile

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

查看/tmp/logfile文件:

cat /tmp/logfile{{execute T2}}