There is problem while sorting comma separated entries (specifically numbers). Even when the separator symbol is set to comma, it reads all following columns with numbers, and doesn't treats comma as separator between following numbers.

If I use command:
sort -t"," -k1 -n Example.csv

Example.csv :
1,100,a,1,a
4,1000,d,4,c
3,1002,c,3,c
22,10,a,2,b

Output:
1,100,a,1,a
22,10,a,2,b
3,1002,c,3,c
4,1000,d,4,c

Expected:
1,100,a,1,a
3,1002,c,3,c
4,1000,d,4,c
22,10,a,2,b

But it works with column 2 or 4, since there are no following numbers.

Regards,

Jash Dave.