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Full Discussion: Keep a certain number of background processes running
Top Forums Shell Programming and Scripting Keep a certain number of background processes running Post 302297266 by danmero on Friday 13th of March 2009 12:49:46 AM
Old 03-13-2009
Quote:
Originally Posted by dgob123
Code:
 
    let counter=$counter+1
    echo "$counter%4" | bc
    if [ `echo "$counter%4" | bc` -eq 0 ] ; then
          wait
    fi

Is there a way to do this?
Replace by:
Code:
while [ $(ps ax|grep -ic $MYSQLDUMP) -gt 4 ] ;do sleep 3;done

While 4+1(grep) sleep 3 seconds Smilie , or you can use pgrep but that's another story.
 

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LEARN ABOUT DEBIAN

ost_counter

ost::Counter< T >(3)					     Library Functions Manual					      ost::Counter< T >(3)

NAME

       ost::Counter< T > -

       The counter template is used for generic objects which act as automatic counters.

SYNOPSIS

       #include <counter.h>

   Public Member Functions
       Counter ()
	   Construct and initialize a counter to zero.
       Counter (const Counter &counter)
	   Construct a counter with an initial value set for another counter.
       Counter (T initial)
	   Construct a counter with an initial value of the specified data type.
       T & operator= (T c)
       operator T ()

   Protected Attributes
       T count

Detailed Description
   template<typename T>class ost::Counter< T >
       The counter template is used for generic objects which act as automatic counters.

       Each time the object is accessed, the underlying counted data type is incremented.

       Author:
	   David Sugar dyfet@gnutelephony.org Automatic counter template class.

Constructor &; Destructor Documentation
   template<typename T > ost::Counter< T >::Counter () [inline]
       Construct and initialize a counter to zero.

       References ost::Counter< T >::count.

   template<typename T > ost::Counter< T >::Counter (const Counter< T > &counter) [inline]
       Construct a counter with an initial value set for another counter. Parameters:
	   counter to copy from.

       References ost::Counter< T >::count.

   template<typename T > ost::Counter< T >::Counter (Tinitial) [inline]
       Construct a counter with an initial value of the specified data type. Parameters:
	   initial value to set.

       References ost::Counter< T >::count.

Member Function Documentation
   template<typename T > ost::Counter< T >::operator T () [inline]
       References ost::Counter< T >::count.

   template<typename T > T& ost::Counter< T >::operator= (Tc) [inline]
Member Data Documentation
   template<typename T > T ost::Counter< T >::count [protected]
       Referenced by ost::Counter< T >::Counter(), and ost::Counter< T >::operator T().

Author
       Generated automatically by Doxygen for GNU CommonC++ from the source code.

GNU CommonC++							  Sat Jun 23 2012					      ost::Counter< T >(3)
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