named pipes Post: 10779

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

PIPEs and Named PIPEs (FIFO) Buffer size

Hello! How I can increase or decrease predefined pipe buffer size? System FreeBSD 4.9 and RedHat Linux 9.0 Thanks!

2. Shell Programming and Scripting

FIFO named pipes

Hi...Can anyone please guide me on FIFO Pipes in UNIX.I have lerant things like creating fifo pipes,using them for reads and writes etc.I want to know what is the maximum amount of memory that such a pipe may have? Also can anyone guide me on where to get info on this topic from?

3. UNIX for Advanced & Expert Users

tee into 2 named pipes

The following code does not work (zsh, Solaris), but works without the first line (files instead of pipes) :confused: mkfifo p1 p2 echo "Hello" | tee p1 > p2 & paste p1 p2 I would high appreciate any help to fix it.

4. Shell Programming and Scripting

named pipes

How to have a conversation between 2 processes using named pipes?

5. HP-UX

remove named pipes

Hi, Please help me on this. I am creating a named pipe in a kshell script. I am using mkfifo pipe_name command to create the pipe. I want to remove the named pipe after my work is completed. How can i do that.

6. UNIX for Dummies Questions & Answers

Named Pipes

hi, i am working on a script for oracle export, m using a parameter file... i want to compress the dump file that is generated.. in my script following is the code i have written. i am not able to generata .gz file mknod /tmp/exp_tesd1_pipe p gzip -cNf...

7. Shell Programming and Scripting

Temporary named pipes in Hpux Kornshell

Tried the following on Hpux 11.11, using both ksh, and dtksh $diff <(sort file1) <(sort file2) $ ksh: syntax error: `(' unexpected Strange thing is I tried the same command under RHEL5 using ksh 93 and it works fine. Does anyone know if this is possible on HPUX without the use of...

8. UNIX for Advanced & Expert Users

Named pipes using MKS Toolkit

I'm not sure whether or not this question really belongs in this forum and will accept rebuke should I have mistakenly put it in the wrong place (hopefully the rebuke will be accompanied by an answer, though) I wish to implement named pipe communication between two process using MKS Toolkit. I...

9. Homework & Coursework Questions

C Program to search and read all named pipes in current directory

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Write a C program to search the current directory for all pipes. 1. It will print the pipe...

10. Shell Programming and Scripting

Dialog with an external program using named pipes

Dear community, I communicate with an external program (maxima) using named pipes. If I use a text file to capture the output (maxima > out.txt) i can see the programs answer directly after the input written into the file. But if bypass the output into a named pipe (maxima > pipe) and capture it...

LEARN ABOUT BSD

mt

MT(1)							      General Commands Manual							     MT(1)

NAME

       mt - magnetic tape manipulating program

SYNOPSIS

       mt [ -f tapename ] command [ count ]

DESCRIPTION

       Mt  is  used  to  give commands to a magnetic tape drive.  If a tape name is not specified, the environment variable TAPE is used;  if TAPE
       does not exist, mt uses the device /dev/rmt12.  Note that tapename must reference a raw (not block) tape device.  By  default  mt  performs
       the requested operation once.  Operations may be performed multiple times by specifying count.

       The available commands are listed below.  Only as many characters as are required to uniquely identify a command need be specified.

       eof, weof
	      Write count end-of-file marks at the current position on the tape.

       fsf    Forward space count files.

       fsr    Forward space count records.

       bsf    Back space count files.

       bsr    Back space count records.

       rewind Rewind the tape (Count is ignored).

       offline, rewoffl
	      Rewind the tape and place the tape unit off-line (Count is ignored).

       status Print status information about the tape unit.

       cacheon
	      Enable the readahead/writebehind cache on the tape unit.

       cacheoff
	      Turn off the readahead/writebehind cache on the tape unit.

       Mt returns a 0 exit status when the operation(s) were successful, 1 if the command was unrecognized, and 2 if an operation failed.

       The cacheon and cacheoff commands currently only apply to the TMSCP driver and then only for certain drives such as the TU81+.  No error is
       produced by the TMSCP driver if the cache commands are used.  Other drivers will return an error code  since  they  do  not  recognize  the
       MTCACHE and MTNOCACHE functions codes.  See mtio(4).

FILES

       /dev/rmt* Raw magnetic tape interface

SEE ALSO

       mtio(4), tmscp(4), dd(1), ioctl(2), environ(7)

4th Berkeley Distribution					 December 22, 1995							     MT(1)

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

PIPEs and Named PIPEs (FIFO) Buffer size

Discussion started by: Jus

2. Shell Programming and Scripting

FIFO named pipes

Discussion started by: tej.buch

3. UNIX for Advanced & Expert Users

tee into 2 named pipes

Discussion started by: zzol

4. Shell Programming and Scripting

named pipes

Discussion started by: kanchan_agr

5. HP-UX

remove named pipes

Discussion started by: chintapalli001

6. UNIX for Dummies Questions & Answers

Named Pipes

Discussion started by: saharookiedba

7. Shell Programming and Scripting

Temporary named pipes in Hpux Kornshell

Discussion started by: fire!