csvprintf is a simple UNIX command line utility for parsing CSV files.

cvsprintf works just like the printf(1) command line utility. You supply
a printf(1) format string on the command line and each record in the
CSV file is formatted accordingly. Each format specifier in the format
string contains a column accessor to specify which CSV column to use,
so for example %3$d would format the third column as a decimal value.

csvprintf can also convert CSV files into XML documents and back.