[root@linuxcool ~]# red
a
Probably the best Linux command site
.
w linuxcool.txt
37
q
[root@linuxcool ~]# cat linuxcool.txt
Probably the best Linux command site
在文件的最后一行之前插入新内容:
[root@linuxcool ~]# red linuxcool.txt
37
-i
This is the inserted content text
.
w
71
q
[root@linuxcool ~]# cat linuxcool.txt
This is the inserted content text
Probably the best Linux command site