Replacing the string after certain # of double quote

Shell Programming and Scripting
1

Could you please help in unix scripting for below scenario...

In my input file, there might be a chance of having a string ( Ex:"99999") after 5th double quote for each record. I need to replace it with a space.

Ex : Input :

"abcdef","12345","99999","0986"
"abcdef","12345","abcdrfgh","0986"
"abcdef","12345","99999","0986"

Output

"abcdef","12345","","0986"
"abcdef","12345","abcdrfgh","0986"
"abcdef","12345","","0986"
2

Try...

awk -F\" '$6==99999{$6=""}1' OFS=\" infile
3

Follwoing is the error while running the below script

awk -F\" '$6==99999999{$6=""}1' OFS=\" Test.csv

awk: syntax error near line 1
awk: bailing out near line 1
4

use nawk if on solaris