Dear Rajak ,
Can you chechk if egrep is available in uour *NIX flavor ?
Code:
which egrep
I have tested the below commandline in my RHEL and DEBIAN box .
Code:
egrep -v $(cat file2.csv | tr '\n' '|' | sed 's/.$//') file1.csv
Otherwise Agama's approach is the easiest , and you can use that .