tee

How to redefine clog to tee to original clog and a log file?

由 廉价感情. 提交于 2019-11-27 18:55:00
问题 I saw a useful start here: http://www.cs.technion.ac.il/~imaman/programs/teestream.html And it works great to make a new stream which goes to both clog and a log file. However, if I try to redefine clog to be the new stream it does not work because the new stream has the same rdbuf() as clog so the following has no effect: clog.rdbuf(myTee.rdbuf()); So how can I modify the tee class to have its own rdbuf() which can then be the target of clog? Thanks. -William 回答1: If you really want to keep

centos的tee命令

由 匆匆过客 提交于 2019-11-27 16:52:12
Linux 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默认覆盖源文件 tee -a不覆盖 [root@centos7 2019-08-17]# echo "1"|tee test.txt 1 [root@centos7 2019-08-17]# cat test.txt 1 [root@centos7 2019-08-17]# echo "2"|tee test.txt 2 [root@centos7 2019-08-17]# cat test.txt 2 [root@centos7 2019-08-17]# echo "3"|tee -a test.txt 3 [root@centos7 2019-08-17]# cat test.txt 2 3 应用场景 1： 记录文件名并且显示具体数量 ls *.html|tee output.txt |wc -l 2： 记录ping包 ping -c4 baidu.com |tee -a test.txt 3： 追加多个文件 ping baidu.com | tee output1.txt output2.txt output3.txt 来源： https://www.cnblogs.com/daixubinbin/p/11370843.html

Tee does not show output or write to file

由 核能气质少年 提交于 2019-11-27 14:36:25
问题 I wrote a python script to monitor the statuses of some network resources, an infinite pinger if you will. It pings the same 3 nodes forever until it receives a keyboard interrupt. I tried using tee to redirect the output of the program to a file, but it does not work: λ sudo ./pingster.py 15:43:33 node1 SUCESS | node2 SUCESS | node3 SUCESS 15:43:35 node1 SUCESS | node2 SUCESS | node3 SUCESS 15:43:36 node1 SUCESS | node2 SUCESS | node3 SUCESS 15:43:37 node1 SUCESS | node2 SUCESS | node3

How can I gzip standard in to a file and also print standard in to standard out?

由 两盒软妹~` 提交于 2019-11-27 12:47:38
问题 I want to execute a command, have the output of that command get gzip'd on the fly, and also echo/tee out the output of that command. i.e., something like: echo "hey hey, we're the monkees" | gzip --stdout > my_log.gz Except when the line executes, I want to see this on standard out: hey hey, we're the monkees 回答1: echo "hey hey, we're the monkees" | tee /dev/tty | gzip --stdout > my_log.gz As pointed out in the comments, /dev/stdout might work better than /dev/tty in some circumstances. 回答2:

Pipe output to two different commands [duplicate]

由 故事扮演 提交于 2019-11-27 10:33:29
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: osx/linux: pipes into two processes? Is there a way to pipe the output from one command into the input of two other commands, running them simultaneously? Something like this: $ echo 'test' |(cat) |(cat) test test The reason I want to do this is that I have a program which receives an FM radio signal from a USB SDR device, and outputs the audio as raw PCM data (like a .wav file but with no header.) Since the

Piping command output to tee but also save exit code of command [duplicate]

由 拜拜、爱过 提交于 2019-11-27 09:10:09
问题 This question already has an answer here: Pipe output and capture exit status in Bash 15 answers I have a shell script in which I wrap a command (mvn clean install), to redirect the output to a logfile. #!/bin/bash ... mvn clean install $@ | tee $logfile echo $? # Does not show the return code of mvn clean install Now if mvn clean install fails with an error, I want my wrapper shell script also fail with that error. But since I'm piping all the output to tee, I cannot access the return code

linux管道和tee命令

由 こ雲淡風輕ζ 提交于 2019-11-27 07:52:26
ps -ef | grep docker 等价于 ps -ef &> >(grep docker) cat a.log | tee b.txt 等价于 cat a.log &> >(tee b.txt) cat a.log | md5sum > a.sum 为了将过程打印到屏幕 cat a.log | tee >(md5sum > a.sum) 从而 cat a.log |tee >(md5sum > a.sum) > b.txt 既可以对数据流做md5sum, 又可以做重定向 cat a.log |tee >(md5sum > a.sum) | tee b.txt md5sum + 屏幕打印 + 写文件 来源： https://www.cnblogs.com/mhc-fly/p/11352028.html

How to get perl code output to STDOUT/STDERR and a file, in realtime and cross-platform?

由 雨燕双飞 提交于 2019-11-27 07:23:40
问题 I need to get the output of normal Perl code to the screen and into a logfile at the same time. However a problem is that the runtime of the tool can be hours. Using Capture::Tiny's tee that means the log file will only be written to once the script terminates, which is not very useful. To further complicate things, i need to capture the output of straight perl from the same process, as well as that of processes called with system(). Lastly, due to employer restrictions it needs to work on

How to replicate tee behavior in Python when using subprocess?

由 帅比萌擦擦* 提交于 2019-11-27 03:27:14
I'm looking for a Python solution that will allow me to save the output of a command in a file without hiding it from the console. FYI: I'm asking about tee (as the Unix command line utility) and not the function with the same name from Python intertools module. Details Python solution (not calling tee , it is not available under Windows) I do not need to provide any input to stdin for called process I have no control over the called program. All I know is that it will output something to stdout and stderr and return with an exit code. To work when calling external programs (subprocess) To

Piping an interactive session to a file

由 随声附和 提交于 2019-11-26 22:54:51
问题 I have made a toy interactive console program that is basically an interpreter: $ myprogram > this is user input this is program output I want to pipe the full session, both user input and program output, into a log file. I can do this like so: $ cat | tee >(myprogram | tee -a file.log) >> file.log > this is user input this is program output $ cat file.log > this is user input this is program output So the above session will display to the terminal as usual but will also be duplicated to the
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