Well I want to tell you my first problem I have trying to use initialize_descr
below. The function send causes my server to crash. I initialized the data
and all should be well but I can't send data to init->newfd
---------- Post updated at 12:36 PM ---------- Previous update was at 12:23 PM ----------
Because of that problem I am semi diverted from using that function. I believe
someone helped me fix that once and it required using a pointer to a pointer or
something that I didn't understand well enough to want to use it.
:cool: I like Vibhory2 like the idea of tapping into the kernel.. although not as indepth as he/she... i want to create a virtual databse of a few ma chines with connectivity and defiinte knowledge to create it.. I havebeen working on the project for a year now.. ! before unix (1 year exactly) i... (20 Replies)
I installed Oracle 10 software on Solaris 11 Express, everything was fine execpt I can't create database using dbca.rsp file. I populated file with following options.
OPERATION_TYPE = "createDatabase"
GDBNAME = "solaris_user.domain.com"
SID = "solaris_user"
TEMPLATENAME = "General... (0 Replies)
Hi,
I have backup file of database in my server. I want to create a that database in the same Mysql Server. How can I do that?
Please send the steps to create the database using backup file?
Thanks a lot, (1 Reply)
Hi.
I have two text files(tables) which include some information and I want to make some query codes using them.
First of all, I want to create bash script that read this two tables, create/open database and insert data from files into database.
#!/bin/bash
while read line; do
... (1 Reply)
Hello ,
I am new in this forum and need your help as I am totally confused :confused:
I read a lot of threads and tried to search a lot but did not get the exact answer to my question.
I just want a simple (content wise may be long) shell script to create oracle database.
In detail:... (5 Replies)
#!/bin/bash
user=`mysql userList -uuserlist -puserlistpassword -s -N -e "SELECT userName FROM users WHERE activated='n'"`
for i in $user; do
useradd "$i" -m
doneThis is what I have done so far. But obviously it still does not work.
I'm trying to create users based on information stored in a... (5 Replies)
Hi all,
I new to scripting and i need to know how to put the script when the capture goes down in the feeds database.. I tried with this "ps -ef | grep asn" command and it displaying the capture,apply time. But the alert we are receving now is replication is failed . So i need to develop the... (1 Reply)
Hello,
Please suggest me the ways how to get graphical interface on AIX server.I need to create oracle database for which I need graphical access.
Best regards,
Vishal (4 Replies)
Hi Guys,
I have a list a hotels stored in many different text files.
This list is kept in the following format:
20/03
Hotel:
The Bear Hotel
Honey Street
Woodstock
UK
Tel:+44-xxxxxx
Rate: 100
21/03
Hotel:
The Bush Hotel
Nice Street
Farnham (4 Replies)
Discussion started by: freddie50
4 Replies
LEARN ABOUT DEBIAN
dup
DUP(2) Linux Programmer's Manual DUP(2)NAME
dup, dup2, dup3 - duplicate a file descriptor
SYNOPSIS
#include <unistd.h>
int dup(int oldfd);
int dup2(int oldfd, int newfd);
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <fcntl.h> /* Obtain O_* constant definitions */
#include <unistd.h>
int dup3(int oldfd, int newfd, int flags);
DESCRIPTION
These system calls create a copy of the file descriptor oldfd.
dup() uses the lowest-numbered unused descriptor for the new descriptor.
dup2() makes newfd be the copy of oldfd, closing newfd first if necessary, but note the following:
* If oldfd is not a valid file descriptor, then the call fails, and newfd is not closed.
* If oldfd is a valid file descriptor, and newfd has the same value as oldfd, then dup2() does nothing, and returns newfd.
After a successful return from one of these system calls, the old and new file descriptors may be used interchangeably. They refer to the
same open file description (see open(2)) and thus share file offset and file status flags; for example, if the file offset is modified by
using lseek(2) on one of the descriptors, the offset is also changed for the other.
The two descriptors do not share file descriptor flags (the close-on-exec flag). The close-on-exec flag (FD_CLOEXEC; see fcntl(2)) for the
duplicate descriptor is off.
dup3() is the same as dup2(), except that:
* The caller can force the close-on-exec flag to be set for the new file descriptor by specifying O_CLOEXEC in flags. See the description
of the same flag in open(2) for reasons why this may be useful.
* If oldfd equals newfd, then dup3() fails with the error EINVAL.
RETURN VALUE
On success, these system calls return the new descriptor. On error, -1 is returned, and errno is set appropriately.
ERRORS
EBADF oldfd isn't an open file descriptor, or newfd is out of the allowed range for file descriptors.
EBUSY (Linux only) This may be returned by dup2() or dup3() during a race condition with open(2) and dup().
EINTR The dup2() or dup3() call was interrupted by a signal; see signal(7).
EINVAL (dup3()) flags contain an invalid value. Or, oldfd was equal to newfd.
EMFILE The process already has the maximum number of file descriptors open and tried to open a new one.
VERSIONS
dup3() was added to Linux in version 2.6.27; glibc support is available starting with version 2.9.
CONFORMING TO
dup(), dup2(): SVr4, 4.3BSD, POSIX.1-2001.
dup3() is Linux-specific.
NOTES
The error returned by dup2() is different from that returned by fcntl(..., F_DUPFD, ...) when newfd is out of range. On some systems
dup2() also sometimes returns EINVAL like F_DUPFD.
If newfd was open, any errors that would have been reported at close(2) time are lost. A careful programmer will not use dup2() or dup3()
without closing newfd first.
SEE ALSO close(2), fcntl(2), open(2)COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2012-02-14 DUP(2)