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Full Discussion: calling a shell script in background and wait using "wait" in while loop
Top Forums Shell Programming and Scripting calling a shell script in background and wait using "wait" in while loop Post 302584849 by mihirvora16 on Monday 26th of December 2011 06:53:49 AM
Old 12-26-2011
calling a shell script in background and wait using "wait" in while loop
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.

Code:
cat abc.txt | while read -u4 line
do
   #if line contains # dont proces that line and continue to next line
   echo $line | grep '#' > /dev/null
   if [[ $? -eq 0 ]]; then
        echo ...skipping comment
        continue
   fi
   # extracting the values from cfg file
   username=`echo $line | cut -d" " -f1`
   hostname=`echo $line | cut -d" " -f2`
   dir=`echo $line | cut -d" " -f3`
   type=`echo $line | cut -d" " -f4`
   dmnname=`echo $line | cut -d" " -f5`
   mnserver=`echo $line | cut -d" " -f6`
   . ${TOOL_DIR}/formatReport.sh $hostname $dmnname $mnserver $curhour $type $reportdir $dir $curdate &
   echo "Process ID = $!"
done
wait
#further processing

file contents for abc.txt
Code:
abc  sun1  /prod/var/1  web1    web_43_1   mt_027_9043_1
def  sun2  /prod/var/2  web2    web_43_2   mt_027_9043_2
pqr  sun3  /prod/var/3  web3    web_43_3   mt_027_9043_3

---------- Post updated at 06:23 PM ---------- Previous update was at 06:14 PM ----------

Any help will be appreciated.. Guys any pointers to what can be issue?
 

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LEARN ABOUT PHP

boolval

BOOLVAL(3)								 1								BOOLVAL(3)

boolval - Get the boolean value of a variable

SYNOPSIS

       boolean boolval (mixed  $var)

DESCRIPTION

	Returns the boolean value of $var.

PARAMETERS

	      o $var
		- The scalar value being converted to a boolean.

RETURN VALUES

	The boolean value of $var.

EXAMPLES

       Example #1

	      boolval(3) examples

	      <?php
	      echo '0:	      '.(boolval(0) ? 'true' : 'false')."
";
	      echo '42:       '.(boolval(42) ? 'true' : 'false')."
";
	      echo '0.0:      '.(boolval(0.0) ? 'true' : 'false')."
";
	      echo '4.2:      '.(boolval(4.2) ? 'true' : 'false')."
";
	      echo '"":       '.(boolval("") ? 'true' : 'false')."
";
	      echo '"string": '.(boolval("string") ? 'true' : 'false')."
";
	      echo '"0":      '.(boolval("0") ? 'true' : 'false')."
";
	      echo '"1":      '.(boolval("1") ? 'true' : 'false')."
";
	      echo '[1, 2]:   '.(boolval([1, 2]) ? 'true' : 'false')."
";
	      echo '[]:       '.(boolval([]) ? 'true' : 'false')."
";
	      echo 'stdClass: '.(boolval(new stdClass) ? 'true' : 'false')."
";
	      ?>

	      The above example will output:

	      0:	false
	      42:	true
	      0.0:	false
	      4.2:	true
	      "":	false
	      "string": true
	      "0":	false
	      "1":	true
	      [1, 2]:	true
	      []:	false
	      stdClass: true

SEE ALSO

       floatval(3), intval(3), strval(3), settype(3), is_bool(3), Type juggling.

PHP Documentation Group 														BOOLVAL(3)
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