Hi,
I am using sftp in my bash script.
I wanted to know whether if there is any way that we can track whether sftp has been successful or not..
Does sftp return any codes?
Thanks in adv (9 Replies)
Hi all,
Under top command you could see some iowait output.
Is any way to locate which process(s) is causing the high percentage of iowait?
17:48:39 up 19 days, 18:54, 3 users, load average: 3.24, 3.14, 3.17
392 processes: 389 sleeping, 1 running, 2 zombie, 0 stopped
CPU states: cpu user... (3 Replies)
Hi,
Sometimes when I want to unmount some filesystem I get "The requested resource is busy." error.
In such a case I try to find and kill process that uses that filesystem. I do that on random.
Is there a right way to find whitch prosesses use filesystem resource at given time ?
thanks... (1 Reply)
Hi all,
We have a server having much processes running. It is very difficuilt to trace the exact consuming more memory. Howerver, it shows CPU usage in sequence but how memory?
Tried working with TOP command.
Please let me know if something not clear.
Thanks,
Deepak (5 Replies)
Hi Friendz,
I have 14 DB load scripts say 1,2,3....14. I want a script to call each script automatically, and after completion of every script, it needs to track the logfile and mail that log file to a group.and again it should run the next script in sequence 1,2,3...14
Please help me,need... (1 Reply)
Hello,
I execute an application on my Unix AIX Server and that one crashes after reading some files. These files are very big (80 Mbytes), the application is a CVS Repository.
I have found with a comparaison on a Solaris Server that there are system limitations on my AIX Server in the... (2 Replies)
I don't know when the process will start and end, I need write a script to trace it's cpu/memory usage when it is runing. How to write this script? (2 Replies)
i have a scenario where i need a script that monitors a process "Monitor" based on process id... there can be any number of instances of this running... i start this across 4 servers in NFS. Now i need a file which has the process ids of the process that are currently in execution at any... (9 Replies)
Hi gurus,
Just wanted to know if there is any way to trace the PID of a process that has already completed it's job and exited.
My tomcat server was found in a hung state and we restarted it. Now we have found that someone has ran a kill -9 "pid" and wanted to know if it is the PID of tomcat.... (1 Reply)
Hi,
i want to track a process using its PID in SOLARIS.
i have a code in C++ , which memory is increasing steeply increasing every 20 days, from the code i couldn't see any memory leak.
is there any way in UNIX where with the help of PID i can trace the Process usage evry hour.
... (3 Replies)
Discussion started by: senkerth
3 Replies
LEARN ABOUT ULTRIX
trace
trace(1) General Commands Manual trace(1)Name
trace - trace system calls of programs
Syntax
trace [options] cmd args...
Description
The command with no flag arguments traces for the given cmd and args all system calls made and prints a time stamp, the PID, call and/or
return values and arguments and puts its output in the file trace.dump.
Options-f filename
Puts dump in file filename.
-z Echos arguments only.
Only one of the following option arguments can be specified at one time.
-c# Traces given PIDs and their children. Up to sixteen PIDs can be specified.
-g# Traces given groups only. Up to sixteen Group IDs can be specified.
-p# Traces given PIDs only. Up to sixteen PIDs can be specified.
-s# Traces given system calls only. Up to sixteen PIDs can be specified.
-u# Traces given UIDs only. Up to sixteen PIDs can be specified.
Examples
trace -f ls.dump ls -l /dev >ls.out
runs the cmd ls -l /dev and puts the trace in ls.dump and output in ls.out.
trace -f csh.trace -p $$ &
will trace your login shell in the background. To stop the trace just send it a termination signal (that is, kill -TERM trace_pid).
Restrictions
Due to security, no one, not even the super-user can trace anyone else's programs. This sort of negates some of the usefulness of the -g
and -u flags.
The program cannot be traced.
Only 16 numbers can be given to the -c, -p, -g, -u, and -s flags.
The kernel configuration file must contain the following:
options SYS_TRACE
pseudo-device sys_trace
In addition, the superuser must use the following command sequence to create the device:
cd /dev
MAKEDEV trace
If both lines are not in the configuration file or if the device is not made, the message "Cannot open /dev/trace" appears.
Files
/dev/trace read only character special device for reading syscall data.
trace.dump default file for the system call trace data.
See Alsoopen(2), close(2), ioctl(2), select(2), read(2), trace(5)trace(1)