[test@localhost shell]$ more range_fields.txt
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz
[test@localhost shell]$ cut range_fields.txt -c1-3,6-9 --output-delimiter ","abcfghi
abcfghi
abcfghi
abcfghi
为何--output-delimiter没有起作用???