Linux 同时在终端和文件中打印？

Print on terminal and into file simultaneously?

提问by Xander

I have a shell script that greps some data.. I want to print the result into a file, but doing that prevents the result being displayed on the terminal. Is there a way that can both print the result on the screen and also write into a file. Thanks in advance.

我有一个用于 grep 一些数据的 shell 脚本。我想将结果打印到一个文件中，但这样做会阻止结果显示在终端上。有没有办法既可以在屏幕上打印结果，也可以写入文件。提前致谢。

采纳答案by Shawn Chin

Pipe your output to the teecommand.

将您的输出通过管道传输到tee命令。

Example:

例子：

[me@home]$ echo hello | tee out.txt
hello
[me@home]$ cat out.txt 
hello

Note that the stdout of echois printed out as well as written to the file specified by thr teecommand.

请注意，输出的标准输出echo以及写入 thrtee命令指定的文件。

回答by Quamis

Does exactly your thing

做你的事

http://linux.die.net/man/1/tee

http://linux.die.net/man/1/tee

回答by J00MZ

Note you can add the -aflag to teeto append to the output file

请注意，您可以将-a标志添加到tee以附加到输出文件

[me@home]$ echo hello | tee out.txt
hello
[me@home]$ echo hello again | tee -a out.txt
hello again
[me@home]$ cat out.txt
hello
hello again