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Error running script

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# 1  
Old 06-05-2014
Tools Error running script
Hi,

I have the the below script

Code:
more runcda.sh
if [ $(sed -n 's/.*\(ParallelGCThreads=[0-9]*\).*/\1/p' $1_dr) ]; then
echo "ParallelGCThreads Found with Value"
else
echo "ParallelGCThreads Not Found - Add !!"
fi

$ ./runcda.sh output.log
./runcda.sh: test: argument expected
ParallelGCThreads Not Found - Add !!

Why am i getting the bold error and how can i get rid of it ?
# 2  
Old 06-05-2014
Try:
Code:
if [ "$(sed -n 's/.*\(ParallelGCThreads=[0-9]*\).*/\1/p' "$1_dr")" ]; then

Otherwise there will be an error is there when the result is empty.
This User Gave Thanks to Scrutinizer For This Post:
mohtashims
# 3  
Old 06-05-2014
Quote:
Originally Posted by mohtashims
Hi,

I have the the below script

Code:
more runcda.sh
if [ $(sed -n 's/.*\(ParallelGCThreads=[0-9]*\).*/\1/p' $1_dr) ]; then
echo "ParallelGCThreads Found with Value"
else
echo "ParallelGCThreads Not Found - Add !!"
fi

$ ./runcda.sh output.log
./runcda.sh: test: argument expected
ParallelGCThreads Not Found - Add !!

Why am i getting the bold error and how can i get rid of it ?
Add quotes:
Code:
if [ "$(sed -n 's/.*\(ParallelGCThreads=[0-9]*\).*/\1/p' $1_dr)" ]; then

Note that the way you have this written, your script will say ParallelGCThreads Found with Value even if there are no digits following the equal sign. If you want to require at least one digit to be present, try:
Code:
if [ "$(sed -n 's/.*\(ParallelGCThreads=[0-9][0-9]*\).*/\1/p' $1_dr)" ]; then

This User Gave Thanks to Don Cragun For This Post:
mohtashims
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