awk处理字符串

文本内容:I am Kang,my qq is 345678
目的:只显示Kang 345678

方法1:
[root@localhost kang]# awk '{print $3,$NF}' test.txt 
kang,my 4567864
[root@localhost kang]# awk '{print $3,$NF}' test.txt | sed 's#,my##g'
kang 4567864


方法2:
[root@localhost kang]# awk -F '[ ,]' '{print $3,$NF}' test.txt 
kang 4567864