thanks for the suggestions . But i don't want to end the process. the process is a 24*7 running application. i shouldn't kill it.
I need to only close certain open file descriptors.
regards
romeo
if your process always works,why do you need close the opened files belong to your process?
if you want to close fd ın your script you can use this
test still fd is open?
and or you can use like this..
-- chkfd code for 3fd(u)--
/* Linux Slackware */
Nmap shows the following ports open on the gateway.
21/tcp ftp
22/tcp ssh
23/tcp telnet
25/tcp smtp
37/tcp time
80/tcp http
113/tcp auth
515/tcp printer
587/tcp submission
1024/tcp kdm
6000/tcp x11
-------------------------------
i would like to close as... (10 Replies)
I have set the maximum no of file descriptors open in a process to the value 8192 using the following lines
set rlim_fd_max=8192
set rlim_fd_cur=8192
in the /etc/system file.
I rebooted the machine and the command ulimit -n / -Hn both display the limits as 8192. However when I run my... (2 Replies)
Hi!
I've a Java socket server program that is listening for requests, and using netstat, I can see that the connection is already open.
However as the process name (from ps -ef) is very long and I can't grep the program name. Can anyone advise how I find out the PID of the process? Can... (5 Replies)
hi,
i hav a query abt reading the contents of /proc/pid/maps file.is there any system apis or functions available to get the data from dat file and parse according to my need. i need name of the .so,Create date of the .so file.,Location of .so file etc.
please provide a good source.
yes i hav... (3 Replies)
Below is a test script to illustrate a problem from a larger script I am writing.
$ cat /tmp/loggingtest
#!/bin/bash
lvcreate -s -l 100%FREE -n var-data-snapshot vg00/var-data 2> >(logger -t "loggingtest.crit") 1> >(logger -t "loggingtest.info")
sync &
wait
lvremove -f... (1 Reply)
i have a text file i.e file1.txt which shows open ports on particular system. i have another text file i.e file2.txt which shows a list of allowed ports on a system. for eg:
file2.txt
22/tcp ssh
23/tcp telnet.
can i have a script which would compare these text files ,file1 and file2 ... (1 Reply)
Hi all,
I'm reading <advanced bash scripting> and there is a example to kill a background process in a limited time,as shown below:
#! /bin/bash
#set -n
TIMEOUT=$1
count=0
hanging_jobs & {
while ((count < TIMEOUT));do
eval ' && ((count = TIMEOUT))'
((count++))
sleep 1... (6 Replies)
I think the libc.so is shared between processes, because it is a shared library and OS is engaged for saving memory.
But, below, the maps of bash, shows r-xp and r--p rw-p attributes to libc.so which mean private memory space.
Can anybody explain this for me?
:)cat /proc/$$/maps... (4 Replies)
Hello all,
I have been tasked with finding the current open file descriptors versus the limit set. In Linux, this can be done like so:
cat /proc/sys/fs/file-nr
3391 969 52427
| | |
| | |
| | maximum open file descriptors
| total free allocated... (2 Replies)
Hi all,
I have a small graphical application whose only purpose is to pop up certain types of messages. Currently, I'm using it in a Bash script like this:
./MyProg "this is my message"
while
do
... do things ...
done
What I want to do is after the while loop is over (it does... (4 Replies)
Discussion started by: Zel2008
4 Replies
LEARN ABOUT SUNOS
setpgid
setpgid(2) System Calls setpgid(2)NAME
setpgid - set process group ID
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
int setpgid(pid_t pid, pid_t pgid);
DESCRIPTION
The setpgid() function sets the process group ID of the process with ID pid to pgid.
If pgid is equal to pid, the process becomes a process group leader. See intro(2) for more information on session leaders and process group
leaders.
If pgid is not equal to pid, the process becomes a member of an existing process group.
If pid is equal to 0, the process ID of the calling process is used. If pgid is equal to 0, the process specified by pid becomes a process
group leader.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.
ERRORS
The setpgid() function will fail if:
EACCES The pid argument matches the process ID of a child process of the calling process and the child process has successfully
executed one of the exec family of functions (see exec(2)).
EINVAL The pgid argument is less than (pid_t) 0 or greater than or equal to PID_MAX, or the calling process has a controlling ter-
minal that does not support job control.
EPERM The process indicated by the pid argument is a session leader.
EPERM The pid argument matches the process ID of a child process of the calling process and the child process is not in the same
session as the calling process.
EPERM The pgid argument does not match the process ID of the process indicated by the pid argument, and there is no process with
a process group ID that matches pgid in the same session as the calling process.
ESRCH The pid argument does not match the process ID of the calling process or of a child process of the calling process.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO intro(2), exec(2), exit(2), fork(2), getpid(2), getsid(2), attributes(5), standards(5)SunOS 5.10 28 Dec 1996 setpgid(2)