Well, you should specify that you want to print scalar, you're missing the " $ ", the following example works OK :
If you want to capture system command's output, you should not use system(), as it only returns the status of wait(). Use backticks instead as shown above.
What does the system call "dup" do?
What is the difference between dup and dup2
I have a fair idea of what it does but I am confused when its coming down to the exact details...
Please help me!:confused: (2 Replies)
open, creat, read, write, lseek and close
Are they all primitive?
:confused:
*Another Question: is there a different between a system call, and an i/o system call? (2 Replies)
Hi,
I'm new to UNIX system calls. Can someone share your knowledge as to how exactly system calls should be executed?
Can they be typed like commands such as mkdir on the terminal itself? Also, are there any websites which will show me an example of the output to expect when a system call like... (1 Reply)
Hello,
how would i be able to call ps in C programming?
thanks,
---------- Post updated at 01:39 AM ---------- Previous update was at 01:31 AM ----------
here's the complete system call, ps -o pid -p %d, getpit() (2 Replies)
All,
Kindly let me know command which is used to trace the system calls on HP - UX server when an executable is run.
On Solaris we have TRUSS which does the need. On HP UX we have TUSC command which is a third party software. Currently this is not installed on my HP Server. If there... (3 Replies)
Discussion started by: helper
3 Replies
LEARN ABOUT DEBIAN
pserver
PSERVER(1) pserver PSERVER(1)NAME
pserver - NetWare print server
SYNOPSIS
pserver [ -S server ] [ -h ] [ -U user name ] [ -P password | -n ] [ -C ] [ -q queue name ] [ -c command ] [ -j job type ] [ -t timeout ] [
-d ]
DESCRIPTION
pserver is a program that connects to print queues on NetWare servers and feeds incoming print jobs to the Linux printing system.
OPTIONS -h
-h is used to print out a short help text.
-S server
server is the name of the server you want to use.
-U user
user is the print server name at the server.
-P password
password is the password to use for the print server at the server. If neither -n nor -P are given, and the user has no open connection
to the server, pserver prompts for a password.
-n
-n should be given if the print server does not require a password.
-C
By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off
this conversion by -C.
-q queue name
queue name is the name of the print queue you want to service.
-c command
When a job is received from the print queue, pserver forks off a new process, and feeds the job file to stdin. command is the printing
command that is executed for each job. The default command is 'lpr'.
You can insert several flags into the command, preceded by %. These are replaced with values retrieved from the queue structure for the
print job.
%u: This field will be replaced by the name of the user who posted this print job.
%d: This field will be replaced by the job description field of this print job.
-j job type
Each job in a NetWare print queue has a job type. For print jobs, this corresponds to the number of the form the job should be printed
on. You can tell pserver that it should only receive jobs for one specific form from the queue. The default is -1, which means that
everything is received.
-t timeout
Pserver is not informed by NetWare servers when new jobs arrive. So a polling scheme has to be used. When there are no jobs to service,
timeout tells pserver how long to wait between two requests. The default is 30 seconds. When a job is finished, pserver asks the NetWare
server immediately for a new job, and does not wait timeout seconds.
-d
Normally, pserver daemonizes itself. -d tells it not to do so. This is useful if you want to see the diagnostic messages that are
printed when a error occurs.
SEE ALSO nwclient(5), slist(1), pqlist(1), ncpmount(8), ncpumount(8)CREDITS
pserver was written by Volker Lendecke (lendecke@math.uni-goettingen.de)
pserver 10/22/1996 PSERVER(1)