In an .csv file I want to replace the null values in a column with value I know how to use it for complete .csv file where ever null replace with NA Can somebody suggest how to this for one specific column.
the sample data is this
Group URL Host contentmatch disabled schedule Thresholds
A www.xxx.com tetcspm1 mytravels one day 100 hits per sec
B xx cc cc enabled 300
C vv vv vv 900
wherever in columns disabled & schedule the value is null it should be replaced by enabled&everyday,all day