The tee tag has no wiki summary.
3
votes
2answers
33 views
How to duplicate a stream and process both parts in a streaming way?
Sometimes I want to insert something in a pipeline for reporting or some other secondary use. It might be as simple as wc -l, or a more complex beast like awk or even a python script. It'd be nice to ...
0
votes
1answer
42 views
Why doesn't this variable assignment work when using tee?
Consider:
$ FILE_NAME=`(cat somefile | head -1)` | tee -a dump.txt
$ echo $FILE_NAME
$
Now, why doesn't the output of (cat somefile | head -1) reach the standard input of tee ..?
If the output ...
2
votes
3answers
86 views
Output to stdout and at the same time grep into a file
I have a script that outputs text to stdout. I want to see all this output in my terminal, and at the same time I want to filter some lines and save them in a file. Example:
$ myscript
Line A
Line B
...
3
votes
3answers
144 views
tee + cat: use an output several times and then concatenate results
If I call some command, for instance an echo I can use the results from that command in several other commands with tee. Example:
echo "Hello world!" | tee >(command1) >(command2) ...
2
votes
1answer
78 views
How to `tee` dropping all CR lines only in the file but not stdout?
When using e.g. rsync, I'd like to tee its output such that I can both view the current progress live, and have a log for later. Using just piping | tee logfile the logfile will contain many lines à ...
1
vote
2answers
296 views
Print/Tee to console without passing output to pipe
Is there a way to print or tee one thing to the console and still pass something else through to the next pipe? Something like:
echo dog | printOrWhatnot "PUTTING MY THING DOWN" | sed 's/dog/cat/g' | ...
3
votes
2answers
480 views
How do I use tee to redirect to grep
I don't have much experience of using tee, so I hope this is not very basic.
After viewing one of the answers to this question I came across a strange beheviour with tee.
In order for me to output ...
3
votes
1answer
504 views
Write data to both a file and a serial port — can I use tee?
I am trying to take the input from a serial port and write it to a file and also then read the file and send it back out the serial port to the host computer. A coworker suggested using the "tee" ...
5
votes
2answers
391 views
Wrapping a shell script with tee
There is a bash script which prints some logs and allows some arguments. The script prints the logs to STDOUT.
Let's say the script's name is AAA.sh
I'd also like to make the script to print the logs ...
4
votes
2answers
246 views
how to redirect terminal output to multiple log files
I've been trying redirect output to logfiles but should NOT be displayed on terminal, but following command does output both on terminal and in logs. Any ideas are appreciated.
(some_cmd | tee -a ...
1
vote
2answers
368 views
how to redirect output to multiple log files
How to redirect standard output to multiple log files
Following seems to be not working. Any help is appreciated.
some_command 1> output_log_1 output_log_2 2>&1
3
votes
2answers
330 views
Different redirection styles with netcat and tee giving different results
In trying to trace a simple HTTP GET request and its response with nc, I'm running into something strange.
This, for example, works fine: the in file ends up containing the HTTP GET request and the ...
4
votes
1answer
180 views
command like wc but with tee behaviour
I want to backup a database using psql and COPY command. here is my script:
psql "user=${USERNAME} host=${HOSTNAME} dbname=${DBNAME} password=${PASSWORD}" -c \
"COPY (SELECT * FROM tbl) ORDER BY id ...
0
votes
1answer
269 views
Bash script doesn't TEE output to subdirectory
I've got a script that runs a number of curl commands by reading an input file line by line (each line has different curl parameters). I'm trying to tee the stnd out and stnd error of the curl ...
11
votes
3answers
370 views
How can I redirect matching lines to a file, and non-matching lines to a different file?
Is there a script/program/utility already available for the following requirement in a optimised way?
someCommand |
tee >(grep "pattern" > LinesWhichMatch) |
grep -v "pattern" > ...
5
votes
1answer
262 views
Is it possible to “fork” STDOUT to two different locations? [duplicate]
Possible Duplicate:
Is there a way in bash to redirect output and still have it go to stdout?
Let's say I do:
ps -ef | grep httpd
to see if apache is running or not, but I also want to ...
0
votes
0answers
286 views
Shell redirection all of a sudden not working? [closed]
I have a Canon camera mounted with gphotofs and I'm trying to essentially do an md5sum on all of the files, but I need to rename the files before I write them to my file, so sed is in the equation. ...
