Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: [SOLVED] Problem in wait statement
Top Forums Shell Programming and Scripting [SOLVED] Problem in wait statement Post 302739543 by Corona688 on Tuesday 4th of December 2012 10:31:23 AM
Old 12-04-2012
It's getting stuck on wait? That makes sense, since it's not about to die. Okay then, you can remove it from the shell's control with disown.

Of course, this means you'll have to make sure you kill this process yourself when the shell quits, since it won't be under the shell's control any more. Closing the output pipe will probably do it, but if it hangs, wait a second then kill it.

Code:
( exec tee -a $OUT_LOG < $OUT_PIPE >&3 ) &
PID="$!"
disown
trap "exec 1>&-; exec 2>&-; sleep 1 ; kill $PID" EXIT

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

I/O wait Problem

When running top, I notice a bit more I/O wait time than usual. Is there a tool or piece of software out there that can me help evaluate the performance of these operations on my machine? Thanks! (5 Replies)
Discussion started by: unavb
5 Replies

2. Shell Programming and Scripting

wait problem

Hello, I have been trying to figure out why the wait isnt waiting for the sleep process to complete till now and have found out that since sleep runs as different process and not a child process the wait isnt waiting. script: cat test|while read i do echo $i sleep 30 & done wait ps... (4 Replies)
Discussion started by: wannalearn
4 Replies

3. Shell Programming and Scripting

plz, i wait your help, AWK problem

I have tracefile of three nodes (0 , 1 and 2 ) as follows: + 0.02 0 1 tcp 40 ------- 1 0.0 2.0 0 0 - 0.02 0 1 tcp 40 ------- 1 0.0 2.0 0 0 + 0.02 2 1 tcp 40 ------- 2 2.1 0.1 0 1 - 0.02 2 1 tcp 40 ------- 2 2.1 0.1 0 1 r 0.025032 0 1 tcp 40 ------- 1 0.0 2.0 0 0 + 0.025032 1 2 tcp 40 -------... (11 Replies)
Discussion started by: ASAADAOUI
11 Replies

4. Shell Programming and Scripting

[Solved] Strange Problem in case statement while shift

Hi, Here is my code as below: test.ksh: ======= #!/bin/ksh option="${1}" while do case $1 in -f) FILE="${2}" echo "File name is $FILE" ;; -d) DIR="${2}" echo "Dir name is $DIR" ;; -*) echo "`basename ${0}`:usage: | " (5 Replies)
Discussion started by: zaq1xsw2
5 Replies

5. Shell Programming and Scripting

[Solved] 0403-057 Syntax error for if statement

I am getting the following error when I am running a script in ksh when trying to execute an if statement comparing two numerical values tstmb.sh: 1.5321e+08: 0403-057 Syntax error Below is my code snippet. #!/bin/ksh set -x TODAY=$(date +%y%m%d) for file in $(ls -rt *.log | tail... (11 Replies)
Discussion started by: kiran1112
11 Replies

6. Shell Programming and Scripting

[Solved] FOR loop / IF statement returning error

The code at the bottom is a simplified example of what we have. If I use the following: && echo "echo failed" $? returns 1 When I use if ; then echo "echo failed" ; fi $? returns 0 Does anyone know what's wrong with this? Using AIX 6.1 and KSH for NUM in 1 2 3 do ... (5 Replies)
Discussion started by: jfxdavies
5 Replies

7. Shell Programming and Scripting

[Solved] While read line and if statement not working

I'm looking for some help in figuring why my little bit of code will not process any entries other then the first one in my list. while read line ;do hostname=${line//\"} a=`ssh user@$hostname uptime;echo $?` if ];then dt=`date` touch... (6 Replies)
Discussion started by: whegra
6 Replies

8. Shell Programming and Scripting

[Solved] If statement in bash

I have the following code in bash, however "set red frmt" is not displayed. echo "iarg_rd = $iarg_rd" iarg_rd="2" if ; then echo "Hello World" fi if ; then frmt="${gap}${!frmt_titl_yl}" elif ; then frmt="${gap}${!frmt_titl_bk}" elif ; then echo... (2 Replies)
Discussion started by: kristinu
2 Replies

9. Shell Programming and Scripting

[Solved] Help with shell Script ,wait for some files for some time??

Hi All, I have the requirement that ,i have to write a shell script that job has to wait for a 7 touch files created by another application for 4 hours, if i get all 7 touch files ,i have to send a mail that i jobs are completed, if if it is waiting for more than 4 hours i have to send a mail... (2 Replies)
Discussion started by: Pradeep Shetty
2 Replies

10. Windows & DOS: Issues & Discussions

Plink wait problem

Hi, I have run into a problem to which i can't seem to find any solution, posting here is my last resort. Problem: I am using plink to access my router and run a few configuration commands. When in enter configurations mode, instead of sending next command plink keeps on waiting for manual... (7 Replies)
Discussion started by: zaainabbas
7 Replies

LEARN ABOUT XFREE86

kill

KILL(1)                                                            User Commands                                                           KILL(1)

NAME

       kill - send a signal to a process

SYNOPSIS

       kill [options] <pid> [...]

DESCRIPTION

       The  default  signal  for kill is TERM.  Use -l or -L to list available signals.  Particularly useful signals include HUP, INT, KILL, STOP,
       CONT, and 0.  Alternate signals may be specified in three ways: -9, -SIGKILL or -KILL.  Negative PID values may be  used  to  choose  whole
       process  groups;  see  the  PGID  column  in ps command output.  A PID of -1 is special; it indicates all processes except the kill process
       itself and init.

OPTIONS

       <pid> [...]
              Send signal to every <pid> listed.

       -<signal>
       -s <signal>
       --signal <signal>
              Specify the signal to be sent.  The signal can be specified by using name or number.  The behavior of signals is explained  in  sig-
              nal(7) manual page.

       -l, --list [signal]
              List signal names.  This option has optional argument, which will convert signal number to signal name, or other way round.

       -L, --table
              List signal names in a nice table.

       NOTES  Your shell (command line interpreter) may have a built-in kill command.  You may need to run the command described here as /bin/kill
              to solve the conflict.

EXAMPLES

       kill -9 -1
              Kill all processes you can kill.

       kill -l 11
              Translate number 11 into a signal name.

       kill -L
              List the available signal choices in a nice table.

       kill 123 543 2341 3453
              Send the default signal, SIGTERM, to all those processes.

SEE ALSO

       kill(2), killall(1), nice(1), pkill(1), renice(1), signal(7), skill(1)

STANDARDS

       This command meets appropriate standards. The -L flag is Linux-specific.

AUTHOR

       Albert Cahalan <albert@users.sf.net> wrote kill in 1999 to replace a bsdutils one that was not standards  compliant.   The  util-linux  one
       might also work correctly.

REPORTING BUGS

       Please send bug reports to <procps@freelists.org>

procps-ng                                                          October 2011                                                            KILL(1)
All times are GMT -4. The time now is 06:17 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy