Hi I am tryibg to check for presance of a string in a big string. I tried as follows:

IS_VECTOR_TEST_CASE=`grep AIV "$PWD"`
if [ "$IS_VECTOR_TEST_CASES" = "" ]
then
   #do something
else
   #do something
fi

This always giving me as if [ "$IS_VECTOR_TEST_CASES" = "" ] is true with following error:
grep: /abc/bcd/cde/AIV/def: Invalid argument

Please help me in this issue...

echo "string" | grep "pattern"

Thnq Very much.........

Be a part of the DaniWeb community

We're a friendly, industry-focused community of 1.18 million developers, IT pros, digital marketers, and technology enthusiasts learning and sharing knowledge.