remove comma from last line

Question

How do I remove the comma from the last line of the file? Here is the file:

# cat ox_data_archive_r_20120727.json
{\"name\": \"secondary_ua\",\"type\":\"STRI         


        

Answer 1

This should work:

sed '$ s/,$//g' input_file

• The first $ selects the last line.

You could add -i and sed will apply the changes to your input_file.