tee

use tee command to redirect output to a file in a non-existent dir

。_饼干妹妹 提交于 2019-12-06 23:39:28
问题 I am trying to use the tee command to redirect output to a file, and I want the file to be created in a dir which is yet to be created. date | tee new_dir/new_file when new_dir is not there, the tee command fails saying tee: new_dir/new_file: No such file or directory If I create the new_dir prior to running the tee command, then it works fine, but for some reason I don't want to create the new_dir manually, is it possible to create the new_dir with the tee command ? 回答1: No. You'll have to

Linux tee命令使用详解分享

浪尽此生 提交于 2019-12-06 13:51:52
  tee命令主要被用来向standout(标准输出流,通常是命令执行窗口)输出的同时也将内容输出到文件,下面是tee的man 信息   read from standard input and write to standard output and files   下面我们通过几个应用场景来熟悉tee命令。   场景1: 如何使用tee命令(http://jlyy0831.com)   tee命令格式是:   1、tee [OPTION]... [FILE]...   从man文件的定义了解 tee从标准输入流读取数据,所以这里我们使用一个简单的命令产生输出流作为tee的输入流,这里就选用ping命令,   [mysql@localhost ~]$ ping baidu.com   PING baidu.com (220.181.57.216) 56(84) bytes of data.   64 bytes from 220.181.57.216 (220.181.57.216): icmp_seq=1 ttl=128 time=30.1 ms   64 bytes from 220.181.57.216 (220.181.57.216): icmp_seq=2 ttl=128 time=33.1 ms   64 bytes from 220.181.57.216 (220

Writing to multiple file descriptors with a single function call

时光怂恿深爱的人放手 提交于 2019-12-06 11:45:24
I had a use case for a group chat server where the server had to write a common string to all clients' socket. I had then addressed this by looping through the list of file descriptors and writing the string to each of the file descriptors. Now I am thinking of finding a better solution to the problem. Is it possible to do this by a single function call from the server by using the tee system call in linux. I want the output of one tee to go to the next tee as well to a clients socket. I am wondering if I can dup the file descriptor of one end of the tee to the clients socket and get the

Are tee and script essentially equivalent?

本秂侑毒 提交于 2019-12-06 06:23:45
问题 In the context where I want to capture the stdout of a process in a file but still want to have this output displayed in the terminal I can choose between script and tee . In this context, are these tools essentially equivalent or is there a – possibly subtle – reason to prefer one over the other? The programs script and tee are designed for different purposes: script -- make typescript of terminal session tee -- pipe fitting Important differences between script and tee are: script transmits

use tee command to redirect output to a file in a non-existent dir

旧巷老猫 提交于 2019-12-05 03:02:23
I am trying to use the tee command to redirect output to a file, and I want the file to be created in a dir which is yet to be created. date | tee new_dir/new_file when new_dir is not there, the tee command fails saying tee: new_dir/new_file: No such file or directory If I create the new_dir prior to running the tee command, then it works fine, but for some reason I don't want to create the new_dir manually, is it possible to create the new_dir with the tee command ? No. You'll have to create the directory before running tee . Replace tee with a function that creates the directory for you: tee

How can I split and re-join STDOUT from multiple processes?

夙愿已清 提交于 2019-12-04 20:35:34
问题 I am working on a pipeline that has a few branch points that subsequently merge-- they look something like this: command2 / \ command1 command4 \ / command3 Each command writes to STDOUT and accepts input via STDIN. STDOUT from command1 needs to be passed to both command2 and command3, which are run sequentially , and their output needs to be effectively concatenated and passed to command4. I initially thought that something like this would work: $ command1 | (command2; command3) | command4

How to stream tmux pipe-pane via UDP

ぐ巨炮叔叔 提交于 2019-12-04 19:30:29
I'm trying to simultaneously save the output from a tmux pane to file and stream it using netcat. What works: tmux pipe-pane -o -t "server" "tee -a '/home/csgoserverp/test.txt'" echo -n "Hello World" | tee -a '/home/me/text.txt' | nc -4u -w1 0.0.0.0 9999 What does not work: tmux pipe-pane -o -t "server" "nc -4u -w1 0.0.0.0 9999" tmux pipe-pane -o -t "server" "tee -a '/home/me/test.txt' | nc -4u -w1 0.0.0.0 9999" Any help would be appreciated. I read somewhere that ncat is better than netcat and for reasons unknown using ncat works: tmux pipe-pane -t "server" "tee -a '/home/csgoserverp/test.txt

Are tee and script essentially equivalent?

限于喜欢 提交于 2019-12-04 13:58:05
In the context where I want to capture the stdout of a process in a file but still want to have this output displayed in the terminal I can choose between script and tee . In this context, are these tools essentially equivalent or is there a – possibly subtle – reason to prefer one over the other? The programs script and tee are designed for different purposes: script -- make typescript of terminal session tee -- pipe fitting Important differences between script and tee are: script transmits the exit status of the process it supervises, while tee , being a filter, does not even know about it.

tee and exit status

帅比萌擦擦* 提交于 2019-12-04 10:15:34
问题 is there an alternative to "tee" which captures STDOUT/STDERR of the command being executed and exits with the same exit status as the processed command. Something as following: eet -a some.log -- mycommand --foo --bar Where "eet" is an imaginary alternative to "tee" :) (-a means append, -- separates the captured command) It shouldn't be hard to hack such a command but maybe it already exists and I'm not aware of it? Thanks. 回答1: Here's an eet . Works with every Bash I can get my hands on,

Using tee to get realtime print statements from python [duplicate]

感情迁移 提交于 2019-12-04 08:24:22
问题 This question already has answers here : Disable output buffering (16 answers) Closed 5 years ago . This question was migrated from Unix & Linux Stack Exchange because it can be answered on Stack Overflow. Migrated 5 years ago . I have a python script that looks something like this: for item in collection: print "what up" #do complicated stuff that takes a long time. In bash, I run this script by doing the following: $ python my.py | tee my_file.txt However, all I see in bash is a blank line