I have a dual boot machine with both
"Windoze ME" and Redhat Linux 7.2. I want to know if it is possible to practice with the Samba Suite on a dual boot machine if I was able to incorporate using IP addresses. I was thinking if your able to ping yourself why wouldn't you be able to administer... (3 Replies)
I'm playing the shell game of moving and deleting files to make room for current DB backup. A set of files gets moved to serverB when serverA threshold is exceeded. I created two scripts one for serverA and one for serverB. Both scripts are run by cron entry. There is a difference of 12 minutes... (4 Replies)
I have a data file that I tail and dump the data into a new file at midnight.
To work I had to use tail -n2 livefile.csv >> storefile.csv. This is ging me 2 or 3 entries at a time into the storefile.csv.
if I continue this then I will have to run a second pass on the file to remove the... (4 Replies)
Hi,
I'm new to HP-UX.
I have LVM on /var with 92Gig. I would like to reduce it to create another LVM for Oracle client with 800 meg or so. How to do it. I'm running 11.iv3
Thanks (4 Replies)
Hi all,
I'v already read some basic books about c++ such as <c++ primer>,<The C++ standard library> etc.,and as we know,knowledge is easy to forget without practicing,so i wanna know some ways to practice my skill with programming.First,i know some ACM sites,however,solving problems on those sites... (4 Replies)
hi
i am new in unix.i have installed linux in my pc,but i want to practice and be expatise in hp ux.but i have no hp server for do it.how could i practice hp ux?please help and give suggestion. (1 Reply)
Is there any sites out there that have examples of things they want you to go and script for practice? I have looked around but have came up empty handed. I have been writing scripts for things I need on my nix box but have am wanting more challenging things to keep me learning. I would prefer... (3 Replies)
Dears,
Kindly as preparing to get AIX certification I'd like to have your guide & support where can I find dump or exam forms for below :-
Test 000-103: AIX 6.1 Basic Operations
Test 000-221: AIX 7 Administration
I want to look at real questions and try to solve it , is it possible to... (1 Reply)
Hello. I'm a noob, but have managed to get to the point of Solaris storage server running 4 X 3Tb in a RAIDZ pool. My current system is sharing via SMB a few different ZFS devices (puddle/TV, puddle/Movies, puddle/Music, etc).
My main server is going to be OSX, Mountain Lion. What I have set... (4 Replies)
Discussion started by: BillyPrefect
4 Replies
LEARN ABOUT ULTRIX
shmop
shmop(2) System Calls Manual shmop(2)Name
shmop, shmat, shmdt - shared memory operations
Syntax
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
char *shmat (shmid, shmaddr, shmflg)
int shmid;
char *shmaddr;
int shmflg;
int shmdt (shmaddr)
char *shmaddr;
Description
The system call attaches the shared memory segment associated with the shared memory identifier specified by shmid to the data segment of
the calling process. The segment is attached at the address specified by one of the following criteria:
If shmaddr is equal to zero, the segment is attached at the first available address as selected by the system.
If shmaddr is not equal to zero and (shmflg & SHM_RND ) is true, the segment is attached at the address given by (shmaddr- (shmaddr modulus
SHMLBA )).
If shmaddr is not equal to zero and (shmflg & SHM_RND ) is false, the segment is attached at the address given by shmaddr.
The segment is attached for reading if (shmflg & SHM_RDONLY ) is true. Otherwise, it is attached for reading and writing.
The system call detaches from the calling process's data segment the shared memory segment located at the address specified by shmaddr.
Return Values
Upon successful completion, the return values are as follows:
o The system call returns the data segment start address of the attached shared memory segment.
o The system call returns a value of zero (0).
Otherwise, a value of -1 is returned, and errno is set to indicate the error.
Diagnostics
The system call fails and not attach the shared memory segment, if any of the following is true:
[EINVAL] The shmid is not a valid shared memory identifier.
[EACCES] Operation permission is denied to the calling process. For further information, see
[ENOMEM] The available data space is not large enough to accommodate the shared memory segment.
[EINVAL] The shmaddr is not equal to zero, and the value of (shmaddr- (shmaddr modulus SHMLBA )) is an illegal address.
[EINVAL] The shmaddr is not equal to zero, (shmflg & SHM_RND ) is false, and the value of shmaddr is an illegal address.
[EMFILE] The number of shared memory segments attached to the calling process would exceed the system imposed limit.
The fails and does not detach the shared memory segment if:
[EINVAL] The shmaddr is not the data segment start address of a shared memory segment.
See Alsoexecve(2), exit(2), fork(2), shmctl(2), shmget(2)shmop(2)