- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
刪除/etc/httpd/conf/httpd.conf文件中空白行可以使用命令（）
A.grep“^$”/etc/httpd/conf/httpd.conf
B.sed-i“/^$/d”/etc/httpd/conf/httpd.conf
C.awk-i“/^$/d”/etc/httpd/conf/httpd.conf
D.cut“/^$/d”/etc/httpd/conf/httpd.conf
