I don't follow what these are...
this is what my text says...
"When a process is started, a duplicate of that process is created. This new process is called the child and the process that created it is called the parent. The child process then replaces the copy for the code the parent... (1 Reply)
:(
Since I'm fairly new to the scene and don't have much experience in shell programming, I decided to check out the net for a useful script or two.
What I'm looking for is a script that would let me enter a PID and then show the process tree associated with it.
So it would display the (grand-)... (2 Replies)
Hello all,
I have gone through the search and looked at posting about idle users and killing processes. Here is my question I would like to kill an idle user ( which I can do) but how can I asure that all of his process is also killed whit out tracing his inital start PID. I have tried this on a... (4 Replies)
Hi
I have written a script using ftp to get files from one server and copy them to 2 dirrerent servers. I wish to call this script from a parent script that will check the number of files copied and run a check sum for each file. As the filenames for the files in the get portion of the script... (3 Replies)
Hi all,
I am writing a script which calls other third party scripts that perform numerous actions. I have no control over these scripts.
My problem is, one of these scripts seems to execute and do what it is meant to do, but my calling / parent script always exits at that point. I need to... (4 Replies)
i used function fork().
so i made two process.
parent process accepted socket fd and writing to shared memory.
then now. how can child process share parent's socket fd?
is this possible?
Thanks in advance (1 Reply)
1. The problem statement, all variables and given/known data:
I need to make an program that in a loop creates one parent and five children with fork(). The problem i'm trying to solve is how to delete the parent and child of the childīs process.
2. Relevant commands, code, scripts,... (0 Replies)
Hi everyone
i am very new to linux , working on bash shell.
I am trying to solve the given problem
1. Create a process and then create children using fork
2. Check the Status of the application for successful running.
3. Kill all the process(threads) except parent and first child... (2 Replies)
Hi,
I am trying my hand in networking programming in C, and got stuck in piping.
I was following some tutorial and did the forking like :
while (1)
{
newsockfd = accept(sockfd,
(struct sockaddr *) &cli_addr, &clilen);
if (newsockfd < 0)
... (4 Replies)
Discussion started by: abhi1988sri
4 Replies
LEARN ABOUT FREEBSD
mailq
MAILQ(1) General Commands Manual MAILQ(1)NAME
mailq - print the mail queue
SYNOPSIS
mailq [-Ac] [-q...] [-v]
DESCRIPTION
Mailq prints a summary of the mail messages queued for future delivery.
The first line printed for each message shows the internal identifier used on this host for the message with a possible status character,
the size of the message in bytes, the date and time the message was accepted into the queue, and the envelope sender of the message. The
second line shows the error message that caused this message to be retained in the queue; it will not be present if the message is being
processed for the first time. The status characters are either * to indicate the job is being processed; X to indicate that the load is
too high to process the job; and - to indicate that the job is too young to process. The following lines show message recipients, one per
line.
Mailq is identical to ``sendmail -bp''.
The relevant options are as follows:
-Ac Show the mail submission queue specified in /etc/mail/submit.cf instead of the MTA queue specified in /etc/mail/sendmail.cf.
-qL Show the "lost" items in the mail queue instead of the normal queue items.
-qQ Show the quarantined items in the mail queue instead of the normal queue items.
-q[!]I substr
Limit processed jobs to those containing substr as a substring of the queue id or not when ! is specified.
-q[!]Q substr
Limit processed jobs to quarantined jobs containing substr as a substring of the quarantine reason or not when ! is specified.
-q[!]R substr
Limit processed jobs to those containing substr as a substring of one of the recipients or not when ! is specified.
-q[!]S substr
Limit processed jobs to those containing substr as a substring of the sender or not when ! is specified.
-v Print verbose information. This adds the priority of the message and a single character indicator (``+'' or blank) indicating
whether a warning message has been sent on the first line of the message. Additionally, extra lines may be intermixed with the
recipients indicating the ``controlling user'' information; this shows who will own any programs that are executed on behalf of this
message and the name of the alias this command expanded from, if any. Moreover, status messages for each recipient are printed if
available.
Several sendmail.cf options influence the behavior of the mailq utility: The number of items printed per queue group is restricted by
MaxQueueRunSize if that value is set. The status character * is not printed for some values of QueueSortOrder, e.g., filename, random,
modification, and none, unless a -q option is used to limit the processed jobs.
The mailq utility exits 0 on success, and >0 if an error occurs.
SEE ALSO sendmail(8)HISTORY
The mailq command appeared in 4.0BSD.
$Date: 2013-11-22 20:51:55 $ MAILQ(1)