mawk -F在命令行中添加字符串时在打印中添加特殊字符

Question

我在centos中遇到Mawk的问题：

cat /var/log/test-2018-10-02-*.csv | mawk -F',' '{ print  $9 "," $11 ","$12"test" }' > try.tsv

问题是当我打印$12"hello"时 然后用vi打开它，我得到了test,test,test^Mhello