Wait command help

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Nohup and wait command usage

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.

2. Shell Programming and Scripting

Proper Use of WAIT Command Within .ksh

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...

3. Shell Programming and Scripting

In Shell Script Does Second Command Wait For First Command To Complete

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...

4. UNIX for Dummies Questions & Answers

How do you wait for command substitution processes to complete?

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....

5. Shell Programming and Scripting

wait command

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...

6. Shell Programming and Scripting

Is there a way to ask expect wait for sometime before running the next send command ?

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...

7. Shell Programming and Scripting

help in wait or sleep command

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...

8. Shell Programming and Scripting

wait command - cat it wait for not-chile process?

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...

9. Shell Programming and Scripting

Wait Command

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....

10. Shell Programming and Scripting

Help with wait command

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...

LEARN ABOUT OSF1

sleep

sleep(1)						      General Commands Manual							  sleep(1)

NAME

       sleep - Suspends execution for at least the specified time

SYNOPSIS

       sleep seconds

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       sleep:  XCU5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

       None

OPERANDS

       Non-negative integer specifying the number of seconds for which execution is to be suspended.

DESCRIPTION

       The  sleep  command suspends execution of a process for at least the interval specified by seconds, which can range from 0 to 2,147,483,647
       seconds.  Depending on system activity, the actual time of suspension may be longer.  See the sleep(3) reference page.

       [Tru64 UNIX]  seconds can be entered as a non-negative decimal, octal, or hexadecimal value.

NOTES

       If sleep receives a SIGALARM signal before process execution has resumed, sleep takes one of the  following  actions:  Terminates  normally
       with a 0 (zero) exit status.  (See the sleep(3) reference page for more information.)  Ignores the signal Performs default processing

EXIT STATUS

       The  following  exit  values  are  returned: Execution was successfully suspended for at least the requested time, or a SIGALARM signal was
       received.  An error occurred.

EXAMPLES

       To display a message at 4-minute intervals for 20 minutes, create a shell script called remind containing the following:

	      for i do sleep 240; echo $i sleep 240; echo $i sleep 240; echo $i sleep 240; echo $i sleep 240; echo $i done

	      To display the message Try calling NHK at 4-minute intervals, enter: remind 'Try calling NHK' To run a command at regular intervals,
	      create a shell script containing the following:

	      while true do
		      date
		      sleep 60 done

	      This  displays  the date and time once a minute.	To execute a command after a specified interval, enter the following; (sleep 3600;
	      echo Time's up) &

	      This displays the message "Time's up" after one hour.

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of sleep: Provides a default value for the internationalization variables that are
       unset or null. If LANG is unset or null, the corresponding value from the default locale is used.  If any of the internationalization vari-
       ables contain an invalid setting, the utility behaves as if none of the variables had been defined.  If set to a  non-empty  string  value,
       overrides  the  values of all the other internationalization variables.	Determines the locale for the interpretation of sequences of bytes
       of text data as characters (for example, single-byte as opposed to multibyte characters in arguments).  Determines the locale for the  for-
       mat  and  contents  of  diagnostic messages written to standard error.  Determines the location of message catalogues for the processing of
       LC_MESSAGES.

SEE ALSO

       Commands:  wait(1)

       Functions:  alarm(3), pause(3), sigaction(2), sleep(3)

       Standards:  standards(5)

																	  sleep(1)

Shell Programming and Scripting