10-30-2009
What about the rules? Who cares? This form is here to help people with a issue.END OF STORY
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear All
How to read the data on my cd and save these data in a dpecial folder
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2. Filesystems, Disks and Memory
Hello,
Our RAID and server recently crashed and we are trying to recover our data. The problem appears to be that the Veritas File System/Logical Volume Manger became corrupt on our RAID. We are down to our last option, which is to run some Veritas commands that "may" result in data loss.
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3. Shell Programming and Scripting
Hi,
I am a newbie to both Linux and this forum.
I was trying to pull out the data from a database but it is not showing up in the multiple lines, with my limited knowledge i linux u tried to format this but wasn't exactly getting what i wanted.
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4. UNIX Desktop Questions & Answers
Hi
I am new to linux, when I typed "vi FILE1" I was able to open VI editor. I added some data and I want to save the file and I tried :w but it threw me an error.
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5. Shell Programming and Scripting
Hi all;
I have the following code which gives me kind of what I need:
#!/usr/bin/perl
use Fcntl ':mode';
#
if ($ARGV ne "") {
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print "Please specify a file!\n";
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#
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6. Shell Programming and Scripting
I am fetching a database table in spool file and send that details as a email.
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7. Shell Programming and Scripting
Hello,
I have the following data format in a log file :
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--------
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8. UNIX for Advanced & Expert Users
My requirement is to read a column data from a file & save it in a variable for each row & process it. I am using the below code-
Leadlines="$TGTFILE/Error.txt">>$log_file
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-----------
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9. UNIX for Dummies Questions & Answers
If I have a A.log
1 Air Flow Monitor : 34.070 Degrees C
2 Air Flow Monitor : 41.730 Degrees C
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5 Air Flow Monitor : 36.770 Degrees C
6 Air Flow Monitor : 45.910 Degrees C
7 Air Flow Monitor ... (1 Reply)
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10. UNIX for Beginners Questions & Answers
"Debain 9 - LXDE"
I execute follow line in the bash terminal:
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My key.txt file looks like follow:
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people(2) System Calls Manual people(2)
NAME
people - fetch a structure containing all ttys, whose owner behaves like a human
SYNOPSIS
#include <sys/people.h>
#include <asr.h>
int people (struct ppl_tty **ttys);
DESCRIPTION
The people function fetches a short description of every tty, whose coupled process behaves as an actual human.
It returns a newly malloc'ed array with just enough elements to contain all elements needed for this.
The struct ppl_tty is declared as:
struct ppl_tty {
char tty_path[MAX_PATH_LENGTH];
int is_erratic;
int uses_jobcontrol;
int is_amoron;
int is_aluser;
int has_aclue;
pid_t pgrp_leader;
};
RETURN VALUES
On success people returns the number of elements in ttys , on failure it returns -1 and errno is set to an appropriate value.
ERRORS
ENOENT There are no human-behavioured processes on the system
EBUSY The kernel is busy and will not stand this silly behaviour. Caution to call people again, from the same process, as the kernel
might kill it right away.
ENODEV See ENOENT above.
EUSERS Too many of the people found were lusers. The cut-off for this error is system dependent, but is usually about 3.
EXAMPLE
#include <sys/people.h>
#include <asr.h>
#include <signal.h>
int
main (int argc, char **argv)
{
struct ppl_tty **ttys;
int rv,c;
rv=people(ttys);
if (rv!=-1) {
for (c=0;c<rv;c++)
if ((ttys[c].is_amoron)||(ttys[c].is_aluser)) {
kill(-(ttys[c].pgrp_leader),SIGKILL);
}
} else {
; /* Handle errors in a graceful way... */
}
}
AUTHOR
This man page was written by Ingvar Mattsson, as a contribution to the a.s.r man page collection.
4th Berkeley Distribution Release 0.01 alpha people(2)