Remove the comma in the first column in .csv file using bash code

I have a data as follows;
12432,20230

I want to remove the comma and replace it with space and want the output as follows;
12432 20230

I used the following code;

sed ’s/,/ /g’ file.csv > file.geno

but it gives error as;

sed: -e expression #1, char 1: unknown command: `�’

>Solution :

Your code is using "smart quotes", ’, instead of single quotes, ', just fix that and your syntax error will go away, i.e. instead of:

sed ’s/,/ /g’ file.csv > file.geno

use:

sed 's/,/ /g' file.csv > file.geno

You don’t need the g at the end btw since you only have 1 comma in your input.