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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 XFREE86

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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