validation - parsing & validating csv data file using unix scripting -

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i have basic knowledge on unix shell scripting(not expert).

my requirement reading csv file using schema defined in configuration file , if condition not mached drop records.

in brief: here i'm defining schema of input file in normal text file , i'm calling configuration file. configuration file looks : col1 integer nn col2 string col3 string nn

also i'm having data file ( .csv file) , looks :

id,name,location 1,john,fl

2,merry,,

3,taylor,ca

a,george,mi

so here need write unix sript such way while reading csv data file ,it should refer configuration file datatype , whether field null or not. if not satisfying condition should drop whole record , move next row validation check.

here expected result :

id,name,age

1,john,fl

3,taylor,ca

rest of records dropped because :

2,merry,, ---> here 3rd filed null in configuration file not null(nn)

a,george,mi --> here 1st field value string in conf file integer.

so how achieved in unix script , commands need used this.

please let me know if scenario not clear.

thanks, shree


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