Does anyone have an example of a korn shell scripts kicking of multiple background processes and then using the wait command to get the return code from those processes?
I want to write a program that kicks off multiple Oracle procedures and then wait for the return code before I procede. Thanks.
Here is a section of a script that I am presently working on that loads several sqlldr threads that will each load a section of one data file (no, I can't use direct path ). I save each thread's PID and wait for all of them to finish. I use a sqlplus co-process to obtain load parameters so using "wait" without specifying PIDs wants to wait of the co-process to complete as well, which I cannot do. If I specify all of my PIDs to "wait", it would no wait for all of them to complete. I settled on a loop of my own that tests to see if the PIDs have finished running.
I save my return codes in a log file and parse it and the logs once everything is done to determine just what happed during the parallel load operation.
I have a script that runs numerous other scripts. I am using a wait command to try and get the calling script to wait for all process called to finish before proceeding.
Issues
How can I set wait to timeout IE a called program never terminates.
Alternatively how can I check the called... (1 Reply)
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)
Hi All,
I have a script which runs 3 scripts. The first script creates two files. The other two scripts should run only when the files are created.
I tried the following for loop , but it is not working. Can someone please help me.
while ; do
# Sleep until file does exists/is created... (4 Replies)
Hi all,
After expect catches the string I specify, is there a way to ask expect wait for sometime before running the next send command ?
So my script looks like following,
expect "some string"
#How to ask expect to wait for a while
send "next command"
The reason I want to do this is... (0 Replies)
Hi all,
I have never used the wait command before and want to know how it works.
I basically need to run four sqlplus sessions in parallel as background processes and i am spooling the results obtained from the database into files.I need to wait for all the processes to finish and then make... (2 Replies)
Hi, Is there any way to know the child process status as and when it finished. If i write like below
nohup sh a1.sh & ### has sleep 20 ;echo a1.sh
nohup sh a2.sh & ### has sleep 10 ;echo a2.sh
nohup sh a3.sh & ### has sleep 5 ;echo a3.sh
wait
This will wait till a1.sh ,a2.sh a3.sh... (0 Replies)
When running a command using the >(cmd) syntax in bash how do you wait for the command to complete before moving on in your script?
Here is a simple example:
zcat largefile.gz | tee >(wc && echo “HELLO”) > /dev/null
# I tried wait, here but it doesn't wait for the process in the subshell.... (8 Replies)
Hi All,
I have a question related to Shell scripting. In my shell script, I have following two commands in sequence:
sed 's/^/grep "^120" /g' $ORIGCHARGEDAMTLIST|sed "s;$;| cut -f$FIELD_NO1 -d '|' | awk '{ sum+=\$1} END {printf (\"%0.2f\\\n\", sum/100)}' >$TEMPFILE
mv $TEMPFILE $ORIGFILE... (3 Replies)
I am trying to write a korn shell script (Z.ksh) that will execute three other korn shell scripts within it. The three korn shell scripts (A.ksh,B.ksh,C.ksh) each execute a series of .sas programs. A.ksh, B.ksh, and C.ksh must each wait until the last .sas program within them executes and finishes... (2 Replies)
while read list
do
nohup ./process.sh $list &
process_id=$!
wait $process_id
done < sample.lst
command1..
command2..
//Am calling a shell script within and firing the multiple processes concurrently. (8 Replies)