Questions tagged [tee]
The tee tag has no usage guidance.
46
questions
1
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1
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GNU "parallel" how to achieve tee behaviour
Is it possible to use gnu-parallel to run multiple commands which all read from stdin?
For example:
echo 'hello world' | parallel --keep-order --tagstring 'Part {=$_=uc($_)=}:' --pipe "cat" :...
- 416
5
votes
1
answer
2k
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How to print and pipe log file at the same time?
I use this to check the log lines of a log file until the occurrence of a specific event (taken from this answer to Monitoring a file until a string is found):
(tail -f -n 0 test.log &) | grep -q '...
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0
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1
answer
127
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How to make #tee take in -append instead of -a option (bionicpup32-8.0)
I'm trying to run team viewer on my bionicpup32-8.0
Running the command teamviewer returns:
Init...
tee: unrecognized option: append
BusyBox v1.30.1 (2019-04-24 21:49:26 +08) multi-call binary.
...
- 23
0
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0
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242
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Write the list of content of a .rar or zip archive into a txt log file with 7z
I have a huge archive.rar and I would like to know its content without extracting it.
Using 7z on a Raspbian
Here are the commands i tried that did just write an empty output.txt file :
sudo 7z l ...
- 101
0
votes
1
answer
550
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Bash split stream (tee) and join them together
I need to do something similar to this question, except that in that question the OP just concat the outputs of command2 and command3, and I need them be handed over separately, like this:
...
- 101
0
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1
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1k
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How to netcat to multiple ports
I'am using a raspberry and i need 2 local streams. This is what i've tried:
Attempt
raspivid <some options> -o - | tee nc localhost 5100 | nc localhost 5000
Question
I can receive the output on ...
- 103
2
votes
0
answers
354
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ffmpeg tee mux option for restreaming a single input to multiple destinations without transcoding using Copy
Wanted to stream or "restream"" to multiple outputs using the tee mux but it appears that the copy flags don't seem to work.
Wanted to try something like this:
ffmpeg -re -i /home/video/test.mp4 -...
- 21
0
votes
1
answer
1k
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Ffmpeg Tee muxer not displaying video stream
I'm trying to send an rtmp stream to wowza with the tee muxer. Then I'm reading the stream from wowza in HLS.
When running this command it works:
ffmpeg -re -i myVideo.mp4 -c copy -f flv
'rtmp://...
- 171
0
votes
1
answer
120
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How to pass a pipe command to terminal -e?
I want to create a shortcut which shows in a new terminal the output of my command and simultaneously writes it into a log file.
I use terminal -e (or urxvt -e) to run the follwing command:
terminal -...
- 413
1
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1
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How to suppress output from tee based on variable in Bash
So, in the following example:
echo "text to write to file but also not send to stdout" | tee -a $logfile 1> /dev/null
The output does not get printed on the terminal. But when I try doing the ...
- 834
1
vote
2
answers
285
views
tee command, show both stdout outputs
I would like to show the content of a file and also the calculated cksum of the file at once, why does the following command only output the file - but not the cksum?
sudo cat filename | tee cksum
I ...
- 423
2
votes
1
answer
7k
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Pipe output of command line by line in Windows
I'm running a server from a batch file and I want the server output to be displayed both on the screen and also written to a log file. I found a way to do this from this answer:
powershell "...
- 563
2
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1
answer
2k
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Pipe stderr to file and screen without redirecting stderr to stdout
In a bash script I'd like to execute a command while piping the stderr to both a file and to the terminal. However, I want stderr to stay on the '2' file descriptor so that I can parse it from an ...
- 3,397
105
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10
answers
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What is the purpose of 'tee'?
All the usages of tee I ever saw were such:
do_something | tee -a logfile
Or:
do_something_else | tee logfile
Is tee invented for those that don't know you can do the same with shell pipe ...
- 1,102
1
vote
1
answer
360
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Using "tee" to selectively log Ubuntu terminal output?
I need to log terminal output. But I only need some outputs which starts with a keyword (say starts with "error"). I use something similar to:
ls | tee "log.txt"
In this example command I do not ...
- 559