Background tasks in a loop (bash) Post: 302507814

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Top Forums Shell Programming and Scripting Background tasks in a loop (bash) Post 302507814 by LMHmedchem on Thursday 24th of March 2011 11:29:40 PM

03-25-2011

Registered User

Quote:

Originally Posted by Corona688

Code:

task1 -nogui -ni -p $PROJ \
      epochs=$EPOS  batches=$BATCH  n_threads=$THRD \
      arch=$ARCH  data_set=$DSET  fldTag=f$FOLDSET  $BACKGRD &

$BACKGRD has the value of "&" for the first three time through the loop, but apparently that doesn't work.

I can probably do this like ,

Code:

FOLDSET=( 0 1 2 3 )

for FOLDSET in ${FOLDSET[@]}
do
   if [ $FOLDSET -lt 3 ]; then
      # start the first three in the background
      task1 -nogui -ni -p $PROJ \
         epochs=$EPOS  batches=$BATCH  n_threads=$THRD \
         arch=$ARCH  data_set=$DSET  fldTag=f$FOLDSET &
   else
      # wait on the last one
      task1 -nogui -ni -p $PROJ \
          epochs=$EPOS  batches=$BATCH  n_threads=$THRD \
          arch=$ARCH  data_set=$DSET  fldTag=f$FOLDSET
   fi
done

unless there are other/better suggestions.

LMHmedchem

LMHmedchem

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arch

ARCH(1) 							   User Commands							   ARCH(1)

NAME

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SYNOPSIS

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GNU coreutils 8.5						   February 2011							   ARCH(1)