Hi All,

I have a shell script, which runs fine manually, but goes into infinite loop, when run through Autosys Scheduler.
The part of code going in infinite loop is pasted below:


*************this is only a part of code*****************

i=0
while [ $i -lt $split ]
do
#echo start $start and end $end
sed -n ''$start','$end'p' $dir/$filename >> $dir/$fldr/input.csv
cat $dir/$fldr/header.csv $dir/$fldr/input.csv >> $dir/$fldr/input_`expr $i + 1`.csv
echo `date +%m%d%y_%T`--$dir/$fldr/input_`expr $i + 1`.csv created >> $log
rm -f $dir/$fldr/input.csv
start=`expr $end + 1`
if [ $i -eq `expr $split - 2` ]; then
start=`expr $end + 1`
end=`expr $filecnt`
else
end=`expr $start + $flsize - 1`
fi
#cat input_`expr $i + 1`.csv
let "i=$i+1"
done

***************************************************


in the last but one line, i am using
let"i=$i+1"

I tried using
i=`expr $i + 1`

but still the script goes in infinite loop...



Need some suggestions...

check $split where it comes from.

let "i=$i+1" is true there is no need to check expr or etc.
and addition let "i=$i+1" is not dependent on a line of code before it. So it must be to possibilities

1. it is not a infinite loop it is waiting on a line before let
2. if it is $split is empty or something else what you expected

I made few corrections in the script, and it worked fine...

1. I defined a temporary variable x to calculate the value of `$i + 1`, as it was not getting passed in echo and cat in the original script.
2. I replaced let with expr, as the autosys server of ous is not having the functionality of let.

Script pasted below:

*******************************************************

while [ $i -lt $split ]
do
#echo start $start and end $end
x=`expr $i + 1`
sed -n ''$start','$end'p' $dir/$filename >> $dir/$fldr/input.csv
cat $dir/$fldr/header.csv $dir/$fldr/input.csv >> $dir/$fldr/input_$x.csv
echo `date +%m%d%y_%T`--$dir/$fldr/input_$x.csv created >> $log
rm -f $dir/$fldr/input.csv
start=`expr $end + 1`
if [ $i -eq `expr $split - 2` ]; then
start=`expr $end + 1`
end=`expr $filecnt`
else
end=`expr $start + $flsize - 1`
fi
#cat input_`expr $i + 1`.csv
let "i=$i+1"
done

*******************************************************



I would like to clarify two thing on this regard:

1. Is it so that autosys is not able to calculate the parameter value at runtime. If so, what does Autosys scheduler do other than just scheduling the script.

2. Is it so that the autosys server, and shell script server should have same set of commands in their command list.