I am trying to create background processes and then check their status later. But I am getting return codes as 0,127 randomly
On checking the return codes for wait, I found the below. Do I need to treat return code of 127 as successful as well?? as we know the process id passed is correct.
Is terminated different than successful? I am getting the return codes randomly.
Calling Background processes Waiting on Background processes
I have created a shell script that spawns multiple background processes (spawns sqlplus application). I use an array to capture the process id of those background processes. I then loop through the array and issue a 'wait' command to wait on the process id that was captured in the array. I am... (2 Replies)
Hi Guys,
I was just wondering if anybody can help me with this problem.
OK, how we can get a value back from PL/SQL Script (not stored procedure/function)
See the below example: (for example aaa.sh)
#!/bin/ksh
VALUE=`sqlplus -s user/password@test_id <<EOF
@xxx.sq
EOF`
echo $VALUE
... (7 Replies)
:cool:
I need to execute a shell script to do the following:
cat a file
run two back ground processes using the first two values from the file
wait till those background processes finish
run two more background processes using the next two values from the file
wait till those background... (1 Reply)
I have a script to download a file using wget.
It works if I execute it from the command line.
But, if I run it in cron, it doesnt work and I am getting the following in the cron log:
> CMD: /export/home/username/test
> username 23159 c Tue Aug 1 14:40:00 2006
< username 23159 c Tue Aug ... (1 Reply)
Hi All,
Can anyone please let me know the syntax / how to pick up the Return Code ( RC) from the mailx command and return it to SAS uisng 'system()' function and '${?}'.
I am in a process to send the mail automatically with an attachment to bulk users. I have used 'Mailx' and 'Unencode'... (0 Replies)
Did not use 'wait' yet.
How I understand by now the wait works only for child processes, started background.
Is there any other way to watch completion of any, not related process (at least, a process, owned by the same user?)
I need to start a background process, witch will be waiting... (2 Replies)
I have just installed Solaris 10 X86 today, but I can't use internet at all on it.
When I was installing it, it only asked me to create a hostname, without even asking me this computer is "networked" or "non-networked".
After I finished installation, I use "netstat -rn" command, and only see... (3 Replies)
I was checking routing table, and noticed that our server has a lot packets from localhost:
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
..
127.0.0.1 127.0.0.1 ... (1 Reply)
Hi,
I am facing a strange issue,
when i call a script from my while loop in background it doesnt go in background, despite the wait i put below the whil loop it goes forward even before the process put in background is completed.
cat abc.txt | while read -u4 line
do
#if line contains #... (2 Replies)
Which one should I use in '/etc/hosts'?
Please explain in details.
Random quotes on the topic: (2 Replies)
Discussion started by: useretail
2 Replies
LEARN ABOUT NETBSD
wait
WAIT(1) BSD General Commands Manual WAIT(1)NAME
wait -- await process completion
SYNOPSIS
wait [pid]
DESCRIPTION
If invoked with no arguments, the wait utility waits until all existing child processes in the background have terminated.
Available operands:
pid If a pid operand is specified, and it is the process ID of a background child process that still exists, the wait utility waits until
that process has completed and consumes its status information, without consuming the status information of any other process.
If a pid operand is specified that is not the process ID of a child background process that still exists, wait exits without waiting
for any processes to complete.
The wait utility exits with one of the following values:
0 The wait utility was invoked with no operands and all of the existing background child processes have terminated, or the process
specified by the pid operand exited normally with 0 as its exit status.
>0 The specified process did not exist and its exit status information was not available, or the specified process existed or its exit
status information was available, and it terminated with a non-zero exit status.
If the specified process terminated abnormally due to the receipt of a signal, the exit status information of wait contains that termination
status as well.
STANDARDS
The wait command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD June 5, 1993 BSD