error in script

amitranjansahu · #1 (**permalink**) 02-10-2009

i am using a shell script where i have to start 20 applications

for (( i = 1 ; i <= 20 ; i++ ))
do
export SMCHOME=/global/app/R1S1A3/RAFS/RAF_$i
$SMCHOME/bin/genraf.exe &> LOG_RAF/RAF_$i.txt &
done

But only the first instance is started and rest are not .

sunpraveen · #2 (**permalink**) 02-10-2009

That is because of the missing statement (highlighted in RED) within the for loop

Code:

for (( i = 1 ; i <= 20 ; i++ ))
do
export SMCHOME=/global/app/R1S1A3/RAFS/RAF_$i
$SMCHOME/bin/genraf.exe &> LOG_RAF/RAF_$i.txt &
i= $(( $i + 1 ))
done

HTH,

Regards,

Praveen

pludi · #3 (**permalink**) 02-10-2009

Quote:

Originally Posted by sunpraveen

That is because of the missing statement (highlighted in RED) within the for loop

Code:

for (( i = 1 ; i <= 20 ; i++ ))
do
export SMCHOME=/global/app/R1S1A3/RAFS/RAF_$i
$SMCHOME/bin/genraf.exe &> LOG_RAF/RAF_$i.txt &
i= $(( $i + 1 ))
done

No, that's taken care of by the for loop (otherwise there would be a syntax error). I suspect the shell parses the redirection incorrectly. Try writing it like this:

Code:

for (( i = 1 ; i <= 20 ; i++ ))
do
    export SMCHOME=/global/app/R1S1A3/RAFS/RAF_$i
    ${SMCHOME}/bin/genraf.exe > LOG_RAF/RAF_${i}.txt &
done

amitranjansahu · #4 (**permalink**) 02-10-2009

Thanks a lot its working now

sunpraveen · #5 (**permalink**) 02-10-2009

Pludi,

Quote:

No, that's taken care of by the for loop (otherwise there would be a syntax error). I suspect the shell parses the redirection incorrectly. Try writing it like this:

Thanks for pointing that out! A gaffe, if ever there was one!

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