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Shell Script in post session command to count the target row count

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am writing a post session shell script where i have to count the target which is a flat file row count and if the count is greater then 500 then send a mail notifying the same. But there are some errors in the script.

cd /data/research_dev/inbfiles
if [ "$(wc -l ff_invoicepreviewqueue1.csv)" > 500 ]; then
echo "Hi," > InvoicePreview.dat
echo " The row count of InvoicePreviewQueue is:   " >> InvoicePreview.dat
#wc -l ff_invoicepreviewqueue1.csv >> InvoicePreview.dat
echo "                  " >> InvoicePreview.dat
echo "            " >> InvoicePreview.dat
echo "Thanks and Regards," >> InvoicePreview.dat
echo "BI Support team." >> InvoicePreview.dat
mailx -s "Alert!! Count is out of limits!! " "" < InvoicePreview.dat
rm -f InvoicePreview.dat.dat
posted Feb 9, 2015 by Sunil

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1 Answer

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The command wc -l ff_invoicepreviewqueue1.csv would usually return count with the file name like, 499 ff_invoicepreviewqueue1.csv. So you cannot compare it with 500. You may do something like cat ff_invoicepreviewqueue1.csv|wc -l which will return only the count.

Also, operator for greater than is "-gt", ">" probably will not work. So to rewrite your if statement it will be:

if [ "$(cat ff_invoicepreviewqueue1.csv|wc -l)" -gt 500 ]; then

    # send mail


Remember to close the if condition with fi.

answer Feb 11, 2015 by Shweta Singh
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+3 votes