Hi!
Im new to all this but the computer club im in has unix i think.
now my questions.
1.is it NTFS i need to partion the harddrive with to be able to use unix?
2.Unix and Linux whats the diffrense?yes im a noob got no idea been using crap windows for ages and hate it.
3.I got a win98... (2 Replies)
Hello Everbody
I hope you can give me a hand, I have some questions
The first one itīs about some message that I donīt know what means, I was looking about it. but nothing. This is the message
rsh: connection from bad port
bsd-gw: Error reading from connection: Bad file number
And my... (4 Replies)
Hi everyone im new to this forums, i just wanted to get started by asking a few question(Im a Unix newbie)
1. How do i sort a file called "dirr" in a ascending order on the 3rd column
2. what does alias on=who do
Thanks in advance!!! (1 Reply)
1.) I am to write scripts that will be phasetest folder in the home directory.
2.) The folder should have a set-up,phase and display files
I have written a small script which i used to check for the existing users and their password.
What I need help with:
I have a set of questions in a... (19 Replies)
1) The lpr and sort utilities accept input either from a file named on the command line or from standard input.
a)Name two other utilities that function in a similar manner.
b)Name a utility that accepts its input only from standard input.
2) Explain the following error message. What... (10 Replies)
Hello,
I would like to know how we can highlight/select a section of a file in vi and delete that section if we don't want to use the dd command to delete one line at at time. There is one where we don't want to delete the whole line , but up to a certain word. (2 Replies)
Discussion started by: Pouchie1
2 Replies
LEARN ABOUT DEBIAN
wait4
WAIT4(2) Linux Programmer's Manual WAIT4(2)NAME
wait3, wait4 - wait for process to change state, BSD style
SYNOPSIS
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/wait.h>
pid_t wait3(int *status, int options,
struct rusage *rusage);
pid_t wait4(pid_t pid, int *status, int options,
struct rusage *rusage);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
wait3():
_BSD_SOURCE || _XOPEN_SOURCE >= 500 || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED
wait4():
_BSD_SOURCE
DESCRIPTION
These functions are obsolete; use waitpid(2) or waitid(2) in new programs.
The wait3() and wait4() system calls are similar to waitpid(2), but additionally return resource usage information about the child in the
structure pointed to by rusage.
Other than the use of the rusage argument, the following wait3() call:
wait3(status, options, rusage);
is equivalent to:
waitpid(-1, status, options);
Similarly, the following wait4() call:
wait4(pid, status, options, rusage);
is equivalent to:
waitpid(pid, status, options);
In other words, wait3() waits of any child, while wait4() can be used to select a specific child, or children, on which to wait. See
wait(2) for further details.
If rusage is not NULL, the struct rusage to which it points will be filled with accounting information about the child. See getrusage(2)
for details.
RETURN VALUE
As for waitpid(2).
ERRORS
As for waitpid(2).
CONFORMING TO
4.3BSD.
SUSv1 included a specification of wait3(); SUSv2 included wait3(), but marked it LEGACY; SUSv3 removed it.
NOTES
Including <sys/time.h> is not required these days, but increases portability. (Indeed, <sys/resource.h> defines the rusage structure with
fields of type struct timeval defined in <sys/time.h>.)
On Linux, wait3() is a library function implemented on top of the wait4() system call.
SEE ALSO fork(2), getrusage(2), sigaction(2), signal(2), wait(2), signal(7)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 2012-09-23 WAIT4(2)