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tech:linux:throttle_process [2015/04/22 11:42] (current) – created - external edit 127.0.0.1
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 +====== Throttle background processes ======
 +Example to throttle the number of unzips running when a large number of files need to be unzipped
 +<code bash>
 +#!/bin/sh
 +cd /data/somefolder/rzips
 +TARD=/data/somefolder/anotherfolder
 +LOGF=/data/somefolder/unziplog
 +COUNTER=0
 +for z in *.zip; do
 +  LOGFILE=$LOGF/${z}.log
 +  CNTUNZIP=`ps -ef|grep -c unzip`
 +  while [ $CNTUNZIP -gt 51 ]; do
 +    sleep 1
 +    CNTUNZIP=`ps -ef|grep -c unzip`
 +  done
 +  let COUNTER=COUNTER+1
 +  echo "#: $COUNTER - Unzipping $z"
 +  nohup unzip $z -x LOG* -d $TARD > $LOGFILE 2>&1 &
 +done
 +</code>
  

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