I ask this question since sometimes i run a time-consuming ftp in foreground and forget to use nohup ftp.sh & to put this work background and can still running after i log off.
Assume this ftp task have run 1 hour, and still 1 hour time to end,
i don't want to abort the ftp, first, i use ctrl+Z... (3 Replies)
Hi All,
The scenario is like this:
There is a process say "A" which create a child process say "B" if some condition is true and process "A" terminates. "B" invokes some C program say "C" using 'execl' function. The job of program "C" is to keep polling the server until the server will be up.... (2 Replies)
hi
what is the shell programming code to know the number of processes currently running on the machine & information about those processes.
Another one is the configuration and usage of the UNIX file system?
requesting all for help.
thanks (1 Reply)
Hello all,
I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted.
Thanks in advance
Regards,
pradeep kulkarni.
:mad: (13 Replies)
I have been having some trouble trying to get some code working, so I was wondering...what system calls are required to execute a different program from an already running process? (1 Reply)
I'm trying to create a ksh script to do the following:
1) Ask the user what process they want to search for.
2) Have the script read the input as a variable and use it to search for the process.
3) Display the current time & date, the working directory of the process, and finally display the... (6 Replies)
All,
1.What is the unix comand used for all current running process (Including All current running processes Parent ->child->subchild process)
2.If child and subchild processes are running then what is the unix command to kill parent and its all child subchild processes in UNIX.
Kindly... (7 Replies)
Hi,
i need to list the processes running only under current logged in user.
EX:
$ whoami
oraaqw
$ ps -ef | grep tnslsnr
oraaqw 11403300 19267592 0 09:14:47 pts/3 0:00 grep tnslsnr
oraaqw 15794208 1 0 Jan 14 - 11:59... (6 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (0 Replies)
Team,
I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list.
How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT OSX
iosnoop
iosnoop(1m) USER COMMANDS iosnoop(1m)NAME
iosnoop - snoop I/O events as they occur. Uses DTrace.
SYNOPSIS
iosnoop [-a|-A|-Deghinostv] [-d device] [-f filename] [-m mount_point] [-n name] [-p PID]
DESCRIPTION
iosnoop prints I/O events as they happen, with useful details such as UID, PID, block number, size, filename, etc.
This is useful to determine the process responsible for using the disks, as well as details on what activity the process is requesting. Be-
haviour such as random or sequential I/O can be observed by reading the block numbers.
Since this uses DTrace, only users with root privileges can run this command.
OPTIONS -a print all data
-A dump all data, space delimited
-D print time delta, us (elapsed)
-e print device name
-i print device instance
-N print major and minor numbers
-o print disk delta time, us
-s print start time, us
-t print completion time, us
-v print completion time, string
-d device
instance name to snoop (eg, dad0)
-f filename
full pathname of file to snoop
-m mount_point
mountpoint for filesystem to snoop
-n name
process name
-p PID process ID
EXAMPLES
Default output, print I/O activity as it occurs,
# iosnoop
Print human readable timestamps,
# iosnoop -v
Print major and minor numbers,
# iosnoop -N
Snoop events on the root filesystem only,
# iosnoop -m /
FIELDS
UID User ID
PID Process ID
PPID Parent Process ID
COMM command name for the process
ARGS argument listing for the process
SIZE size of the operation, bytes
BLOCK disk block for the operation (location. relative to this filesystem. more useful with the -N option to print major and minor num-
bers)
STIME timestamp for the disk request, us
TIME timestamp for the disk completion, us
DELTA elapsed time from request to completion, us (this is the elapsed time from the disk request (strategy) to the disk completion
(iodone))
DTIME time for disk to complete request, us (this is the time for the disk to complete that event since it's last event (time between
iodones), or, the time to the strategy if the disk had been idle)
STRTIME
timestamp for the disk completion, string
DEVICE device name
INS device instance number
D direction, Read or Write
MOUNT mount point
FILE filename (basename) for I/O operation
NOTES
When filtering on PID or process name, be aware that poor disk event times may be due to events that have been filtered away, for example
another process that may be seeking the disk heads elsewhere.
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
iosnoop will run forever until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO iotop(1M), dtrace(1M)version 1.50 Jul 25, 2005 iosnoop(1m)