my requirement is to throw away the logs sent to the stdout and stderr .It seems it is working with ur command.
can u please explain the whole command as what you are tyring to do with this command with the split of each part in that command.
Quote:
nohup ./run_sample.sh > /dev/null 2>&1 &
In the above u are directing to /dev/null ... means what
2>&1 ... means what and also why & infront of 1
& .... to make the entire operation to be background process
Basically, run_sample.sh is going to contain the following commands
already i am using '&' inside shell script to make the java process run as background.
Do we still need to make the shell script run as background in order to achieve whatever i said .. basically i want final command that can go for prod enviroment.
please do give me final and consolidated command ....
I am newbie to unix shells world.
I am trying to capture a background process id into a file so that it can be killed later.
this process is basically a java program running in background as:
java TestApp &
this returning process id immediately. So how can i redirect that pid into a file.... (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)
Guys
we all know what command 'COLUMNS=2047 /usr/bin/ps –eo pid,ppid,uid,user,args' does.It prints 5-column output for the running processes on a AIX box.
Here is simple thing i need:
I need to insert this tabular data in a db2 table.
How do i need?
I have created table with these five... (0 Replies)
Hi Experts, we do have a shell script for Unix Solaris, which will kill all the process manullay, it used to work in my previous env, but now it is throwing this error.. could some one please help me to resolve it
This is how we execute the script (and this is the requirement) ... (2 Replies)
i'm looking to have my script capture it's own process name while running.
i'm going to use this in the output of the script to track which script produced which output file(s).
when i run:
ps -ef | grep processname
i only get as results a ps -ef listing for the grep inside my... (6 Replies)
Hi,
I just wonder I need to write a script where I can check if a particular process is consuming X amount of CPU. I was thinking of using the ps command but doesn't seems to work. Any ideas. Thanks. (2 Replies)
Hi,
I'm gonna launch a process from my 'C' code. I'm gonna launch it a few times. I would like to capture the PID of that process each time I launch. I have to copy the each PIDs into a 'C' variable and I have to kill all of them when I exit from the 'C' code.
My requirement is
int... (3 Replies)
I have two set of questions.
1) To skip killing some process automatically.
2) To kill other process and capture their log.
I have set of process, some needs to be killed gracefully and others should be skipped.
Listed are the process.
adm 1522... (1 Reply)
Hi All,
I was out not working on unix from quite sometime and came back recently. I would really appreciate a help on one of the issue I am facing....
I am trying to kick off the CodeNameProcess.sh in PARALLEL for all the available codes. The script runs fine in parallel.
Let say there are... (1 Reply)
I am writing a script to kick off a process to gather logs on multiple nodes in parallel using "&". These processes create individual log files. Which I would like to filter and convert in CSV format after they are complete. I am facing following issues:
1. Monitor all Processes parallelly.... (5 Replies)
Discussion started by: shunya
5 Replies
LEARN ABOUT XFREE86
wait
wait(1) User Commands wait(1)NAME
wait - await process completion
SYNOPSIS
/bin/sh
wait [pid...]
/bin/jsh /bin/ksh /usr/xpg4/bin/sh
wait [pid...]
wait [ % jobid...]
/bin/csh
wait
DESCRIPTION
The shell itself executes wait, without creating a new process. If you get the error message cannot fork,too many processes, try using the
wait command to clean up your background processes. If this doesn't help, the system process table is probably full or you have too many
active foreground processes. There is a limit to the number of process IDs associated with your login, and to the number the system can
keep track of.
Not all the processes of a pipeline with three or more stages are children of the shell, and thus cannot be waited for.
/bin/sh, /bin/jsh
Wait for your background process whose process ID is pid and report its termination status. If pid is omitted, all your shell's currently
active background processes are waited for and the return code will be 0. The wait utility accepts a job identifier, when Job Control is
enabled (jsh), and the argument, jobid, is preceded by a percent sign (%).
If pid is not an active process ID, the wait utility will return immediately and the return code will be 0.
csh
Wait for your background processes.
ksh
When an asynchronous list is started by the shell, the process ID of the last command in each element of the asynchronous list becomes
known in the current shell execution environment.
If the wait utility is invoked with no operands, it will wait until all process IDs known to the invoking shell have terminated and exit
with an exit status of 0.
If one or more pid or jobid operands are specified that represent known process IDs (or jobids), the wait utility will wait until all of
them have terminated. If one or more pid or jobid operands are specified that represent unknown process IDs (or jobids), wait will treat
them as if they were known process IDs (or jobids) that exited with exit status 127. The exit status returned by the wait utility will be
the exit status of the process requested by the last pid or jobid operand.
The known process IDs are applicable only for invocations of wait in the current shell execution environment.
OPERANDS
The following operands are supported:
One of the following:
pid The unsigned decimal integer process ID of a command, for which the utility is to wait for the termination.
jobid A job control job ID that identifies a background process group to be waited for. The job control job ID notation is applicable
only for invocations of wait in the current shell execution environment, and only on systems supporting the job control option.
USAGE
On most implementations, wait is a shell built-in. If it is called in a subshell or separate utility execution environment, such as one of
the following,
(wait)
nohup wait ...
find . -exec wait ... ;
it will return immediately because there will be no known process IDs to wait for in those environments.
EXAMPLES
Example 1: Using A Script To Identify The Termination Signal
Although the exact value used when a process is terminated by a signal is unspecified, if it is known that a signal terminated a process, a
script can still reliably figure out which signal is using kill, as shown by the following (/bin/ksh and /usr/xpg4/bin/sh):
sleep 1000&
pid=$!
kill -kill $pid
wait $pid
echo $pid was terminated by a SIG$(kill -l $(($?-128))) signal.
Example 2: Returning The Exit Status Of A Process
If the following sequence of commands is run in less than 31 seconds (/bin/ksh and /usr/xpg4/bin/sh):
sleep 257 | sleep 31 &
jobs -l %%
then either of the following commands will return the exit status of the second sleep in the pipeline:
wait <pid of sleep 31>
wait %%
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of wait: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), jobs(1), ksh(1), sh(1), attributes(5), environ(5), standards(5)SunOS 5.10 12 Dec 1997 wait(1)