replacing commas with tilde in csv file.

hello all,
i have a comma delimited file.
i want to replace the commas in the file with the tilde symbol using sed.
how can i do this?
thanks.

sed 's/,/~/g' input_file > temp_file && mv temp_file input_file

or using perl:

perl -p -i -e 's/,/~/g' input_file

jean-Pierre.

sed 's/,/~/g' filename > newfile

.... unless you have embedded commas.

sed -e 's/,/~/g' filename