fork error Post: 26415

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Fork

What is a fork? Why would one create a fork? What are the advantages and disadvantages of using a fork? Please advise. Thank You. Deepali

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I run this code, actually I want to both processes print the message from "data". But only one does. What happens? Anyone can help? #include <stdio.h> main(){ int fd, pid; char x; fd = open("data",0); /* open file "data" */ pid = fork(); if(pid != 0){ wait(0); ...

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Fork or what?

Hello all. I'm developing a filetransfer application, which is supposed to work sort of like dcc, with multiple transfers etc. Now i wonder what the best way to manage the transfers is. Should i fork() for each new transfer, hogging loads of memory or use pthreads? Maybe I can use select to see...

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Problem due to Fork Error

Hi, I have developed a datastage job...which has many process running in parallel..but because of Fork Error my job is not working:( Can any body help me out to solve this Fork error problem.:rolleyes: My Os is SUNOS. IS there any setting in Unix through admin where in if i set some paramter...

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error : can not fork new process

hi today we came across error "can not fork new process" when i checked there were 400 ksh processes were running for that particular user ( due to kernel parameter setting no of processes were restricted to 400 ) and the reason for this was somebody executed shell script which had "*" ( only *...

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error message when use fork with open file

I get this message when I write myshell.c program "VM pagefault:SIGSEGV bad add 0x0 err 0x4 nopage read myshell PM: ciredump signal 11 for 1725 /myshell memory fault (core dumped)" /* RCS information: $Id: myshell.c,v 1.2 2006/04/05 22:46:33 elm Exp $ */ #include <stdio.h> #include <unistd.h>...

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Fork!

I understand that fork create a child but I need very simple example that make child useful.... I mean how will make the program faster anyone explain with code plz using C plz

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Fork resource unavailable error, max # filehandles open?

I wrote a perl program that simultaneously reads in data from 691 tar.gz files using zcat. I can run one instance of the program without any issues and the memory and swap sizes are negligible. However, when I attempt to run more than 1 I start to get fork: resource unavailable messages. Are...

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SUDO error in Solaris: auth.error] fork

I cannot solve the following error bellow. Can someone help me on this please? Mar 31 07:08:45 serverx sudo: fork Mar 31 07:18:50 serverx sudo: fork Mar 31 07:28:45 serverx sudo: fork Mar 31 07:38:47 serverx sudo: fork Mar 31 07:48:45 serverx sudo: fork Mar 31 07:58:45 serverx...

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Strange fork error while running script

more run.sh !/bin/bash input="data.txt" while IFS= read -r var do startdir="/web/logs" searchterm=$(echo $var | awk -F'=' '{print $1}') replaceterm=$(echo $var | awk -F'=' '{print $2}') find "$startdir" -type f -exec grep -l "$searchterm" {} + | while read file do if sed -e...

LEARN ABOUT DEBIAN

opensc-tool

OPENSC-TOOL(1)							   OpenSC tools 						    OPENSC-TOOL(1)

NAME

       opensc-tool - generic smart card utility

SYNOPSIS

       opensc-tool [OPTIONS]

DESCRIPTION

       The opensc-tool utility can be used from the command line to perform miscellaneous smart card operations such as getting the card ATR or
       sending arbitrary APDU commands to a card.

OPTIONS

       --info, -i
	   Print information about OpenSC, such as version and enabled components

       --atr, -a
	   Print the Answer To Reset (ATR) of the card, output is in hex byte format

       --name, -n
	   Print the name of the inserted card (driver)

       --serial
	   Print the card serial number (normally the ICCSN), output is in hex byte format

       --send-apdu apdu, -s apdu
	   Sends an arbitrary APDU to the card in the format AA:BB:CC:DD:EE:FF...

       --list-files, -f
	   Recursively lists all files stored on card

       --list-readers, -l
	   Lists all configured readers

       --list-drivers, -D
	   Lists all installed card drivers

       --reader num, -r num
	   Use the given reader number. The default is 0, the first reader in the system.

       --card-driver driver, -c driver
	   Use the given card driver. The default is auto-detected.

       --wait, -w
	   Wait for a card to be inserted

       --verbose, -v
	   Causes opensc-tool to be more verbose. Specify this flag several times to enable debug output in the opensc library.

SEE ALSO

       opensc-explorer(1)

opensc								    06/03/2012							    OPENSC-TOOL(1)

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Fork

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fork() fd

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4. UNIX for Advanced & Expert Users

Problem due to Fork Error

Discussion started by: Amey Joshi