05-14-2008
taking the command further.
thats great, now what if i want to take those files it found and automatically delete them?
Frank
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi All
L2000-44
HP-UX 11.00
I am attempting to setup a FIFO over NFS. Directing and reading from the FIFO works fine on the local machine - however when I direct to the FIFO from a server which has the directory NFS mounted it does not work. The a process to read from the FIFO on the local... (2 Replies)
Discussion started by: saabir
2 Replies
2. Programming
hello i am making a client server program
that communicates via FIFOS and i cannot get it to not hang
i also am forking exec-ing the client from the server
my logic (i will spare you the code )
in the server
i make two fifos in my server my file permissions
are 0644
i then open both... (1 Reply)
Discussion started by: runawayNinja
1 Replies
3. UNIX for Advanced & Expert Users
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? (4 Replies)
Discussion started by: tej.buch
4 Replies
4. Programming
hi, I have a problem. I've done a lil program which gets from the server the given persons username a personal folder. I made it with a pipe calling popen with a command, but how can i make the same thing using fifo. I make the fifo with mkfifo() func. and than what. How do I tell the sertver using... (3 Replies)
Discussion started by: atticus
3 Replies
5. Programming
hi, my problem is
i have 10 thread for produces double two dimensional array these will produces 2d array 400 times ,then i have a thread to takes a two dimensional array then it inverse , and most 10 array can be in the fifo , and threads given takes one by one, now my problem is , i cant... (0 Replies)
Discussion started by: bblackened
0 Replies
6. Programming
Dear friends
i'm want to implement a program which one file is split into fragments by the server (by some random size) and sent to some processes, so these processes get randomly the fragments of the original file from the server, then the downloader randomly connects to some of these processes... (0 Replies)
Discussion started by: saman_glorious
0 Replies
7. Programming
=server.c=
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <signal.h>
#define MSGSIZE 50 (1 Reply)
Discussion started by: sponge
1 Replies
8. UNIX and Linux Applications
Hello ,
I am working on unix FIFO IPC. i have a doubt regarding that.
If the fifo is updated(write()) through one process....can we able to send any signal that fifo is updated and ready to get read...to other process.?? (0 Replies)
Discussion started by: Harry443
0 Replies
9. Shell Programming and Scripting
Hi All,
I have to merge the data in all the files in a folder such that the data of the earliest file come first then the second file's data and so on. Please help.
Thanks. (22 Replies)
Discussion started by: unankix
22 Replies
10. UNIX for Beginners Questions & Answers
Hi all,
First of all, sorry for the pastebin link. The code tags aren't working for me.
#!/bin/bash # while-menu-dialog: a menu driven - Pastebin.com
This is a channel "changer" shell script i'm working on. It uses dialog to display the menus.
It... (3 Replies)
Discussion started by: ignatius
3 Replies
fifo(3tcl) fifo(3tcl)
NAME
fifo - Create and manipulate u-turn fifo channels
SYNOPSIS
package require Tcl
package require memchan
fifo
DESCRIPTION
fifo creates a stream-oriented in-memory channel and returns its handle. There is no restriction on the ultimate size of the channel, it
will always grow as much as is necessary to accommodate the data written into it.
In contrast to the channels generated by memchan a channel created here effectively represents an U-turn. All data written into it
can be read out, but only in the same order. This also means that a fifo channel is not seekable.
The channels created here can be transferred between interpreters in the same thread and between threads, but only as a whole. It is
not possible to use them to create a bi- or unidirectional connection between two interpreters.
Memory channels created by fifo provide two read-only options which can be queried via the standard fconfigure command. These are
-length
The value of this option is the number of bytes currently stored in the queried memory channel.
-allocated
The value of this option is the number of bytes currently allocated by the queried memory channel. This number is at least as big as
the value of -length.
As the channels generated by fifo grow as necessary they are always writable. This means that a writable fileevent-handler will fire con-
tinuously.
The channels are also readable if they contain more than zero bytes. Under this conditions a readable fileevent-handler will fire continu-
ously.
NOTES
One possible application of memory channels created by memchan or fifo is as temporary storage device to collect data coming in over a pipe
or a socket. If part of the processing of the incoming data is to read and process header bytes or similar fifo are easier to use as they
do not require seeking back and forth to switch between the assimilation of headers at the beginning and writing new data at the end.
SEE ALSO
fifo2, memchan, null
KEYWORDS
channel, fifo, i/o, in-memory channel, memchan, stream
COPYRIGHT
Copyright (c) 1996-2003 Andreas Kupries <andreas_kupries@users.sourceforge.net>
Memory channels 2.1 fifo(3tcl)