HI,
I am able to find days difference using FIND command. However it is comparing between today and the last time it was modified.
I now need to find the difference between a date specified by myself and the last time the file was modified. Is there a command which I can use or I have to... (1 Reply)
I am trying to write a Shell script wherein the shell needs to read a list of PID in the File $stat/bin/Process and compare it to the PID of the processes running on a server.
Also the script should return KO(not OK) with corresponding label :-
a) When an environmental variable not... (2 Replies)
Hi,
There is a file having a list of running PIDs and another file having a list of registered PIDs. How can we check if the number of running PIDs are less or more than the registered PIDs, comparing the total no. in each and also each value.
Request you to pls give your inputs.
Thanks a... (2 Replies)
I have the column as
2.14%
1.42%
0.64%
0.50%
0.44%
0.38%
0.38%
0.36%
0.35%
0.35%
0.32%
0.32%
0.31%
0.30%
0.30%
I want to find out if any of these values is greater than 75%, is yes then print that value. (2 Replies)
I am trying to determine the root cause of a java process that dies trying to startup during it's cron job.
I did go ahead and change the time that it starts up in the cron file and now it starts successfully.
However is there a way to determine what PID a process was attempting to get when... (5 Replies)
Hi there !!!
I am writing a script to kill the pids on different linux boxes :cool:
the output of my command gives the pids running on that box, but how can I kill all the pids without looping? :confused:
Code:
ssh $i ps -fu $USER | grep ManServer | grep -v grep | awk '{print $2}' | kill
... (4 Replies)
Hi All,
I have a date variable say dt="2014-01-06 07:18:38"
Now i need to use this variable to search a log and get the entries which occured after that time. (1 Reply)
im looking for a portable way to get the PID of the script that is running, and to get every other PIDs that are spawned from it.
and by ever other PIDs, i presume, that would be "child processes".
however, i want to shy away from using any command that is not available on every single unix... (1 Reply)
Discussion started by: SkySmart
1 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)