Named Pipe contents to a file


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Named Pipe contents to a file
# 1  
Old 02-26-2007
Named Pipe contents to a file

I want to copy the contents of a named pipe to a file. I have tried using:

cat pipe.p >> transcript.log

but I have been unsuccessful, any ideas?
# 2  
Old 02-26-2007
A named pipe is used for 2 processes to communicate with each other.

One process writes to the pipe where the other reads from the pipe.

What are you trying to accomplish anyway?
# 3  
Old 02-26-2007
I know what a named pipe is!

What I am doing is a chat program, I am transmitting the messages between users through the named pipes. I want to send to a file the contents of the pipe, in order to keep a record of the conversation.
# 4  
Old 02-26-2007
Seems to me a violation of privacy.

Do you have permission of those users to record their conversation?
# 5  
Old 02-27-2007
Bug

use following syntax

make the content u r writing as a background process
ex::

mkfifo -m 600 foo
ls -l > foo &
cat foo
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to test named pipe file?

Hi ALL, How can I test a given file name exists and if it is a named pipe file in shell script ? Thanks............ (2 Replies)
Discussion started by: mycode.in
2 Replies

2. UNIX for Dummies Questions & Answers

Named pipe hanging?

Ok, I can't seem to figure this out or find anything on the web about this. I'm on Sun Solaris, UNIX. I have the following test script: #!/bin/ksh touch test.file LOG=./tmp.log rm -f ${LOG} PIPE=./tmp.pipe mkfifo ${PIPE} trap "rm -f ${PIPE}" EXIT tee -a ${LOG} < ${PIPE} & ... (17 Replies)
Discussion started by: Ditto
17 Replies

3. Shell Programming and Scripting

Processing a file list via named pipe

I have a ksh93 script I use that processes a file list in the order that they exist in the list. I would like to speed up processing of the list by having multiple processes handle it at once. I was thinking that perhaps a good way to handle this would be to write the list to a named pipe and some... (4 Replies)
Discussion started by: benalt
4 Replies

4. Programming

Named pipe behavior in Linux

Hi All ! I try to collect importent events from syslog and in my syslog conf, there is something like this: *.* |/logs/ipes/SLpipe1 I have a program, which opens this pipe and reads the messages from it. But how this pipe works ? Where can I probably read something about the details,... (3 Replies)
Discussion started by: mabra
3 Replies

5. Shell Programming and Scripting

Named pipe performance

Hi, I am getting data into a Named pipe. Does Named pipe have any size restriction; I know it does not have any storage and it just passes on the data to the next process. I want to know, if there will be a difference in the Named pipe performance if the data input is more. (I am using DB2... (1 Reply)
Discussion started by: sudvishw
1 Replies

6. Shell Programming and Scripting

pipe to file named with date

I would like to pipe (redirect ? - what is the right term?) the output of my script to a file named with the current date. If I run this at a command prompt: date +'%Y%m%d" ...it returns "20110429" OK, that's good... so I try: ./script.sh > "'date +%Y%m%d'.csv" I get a file... (1 Reply)
Discussion started by: landog
1 Replies

7. UNIX for Dummies Questions & Answers

fifo or named pipe working?

Can someone explain to me the working of fifo() system call using simple C programs so that I can implement them in the UNIX environement? (1 Reply)
Discussion started by: lvkchaitanya
1 Replies

8. UNIX for Dummies Questions & Answers

Named PIPE

Gurus, I've a File Transaction Server, which communicates with other servers and performs some processing.It uses many Named PIPE's. By mistake i copied a named PIPE into a text file. I heard that PIPE files shouldn't be copied.Isn't it? Since it's a production box, i'm afraid on... (2 Replies)
Discussion started by: Tamil
2 Replies

9. Programming

IPC using named pipe

Hi All, I am facing a vague issue while trying to make two process talk to each other using named pipe. read process ========= The process which reads, basically creates FIFO using mkfifo - ret_val = mkfifo(HALF_DUPLEX, 0666) func. It then opens the pipe using open func - fd = open... (2 Replies)
Discussion started by: sharanbr
2 Replies

10. UNIX for Advanced & Expert Users

IPC using named pipe

Hi All, I am facing a vague issue while trying to make two process talk to each other using named pipe. read process ========= The process which reads, basically creates FIFO using mkfifo - ret_val = mkfifo(HALF_DUPLEX, 0666);) func. It then opens the pipe using open func - fd =... (1 Reply)
Discussion started by: sharanbr
1 Replies
Login or Register to Ask a Question

Featured Tech Videos