使用sed删除注释项和空格

admin

# cat /etc/neutron/neutron.conf |sed s/^" "*//g |sed /^$/d |sed /^#/d

rui

sed去除注释行：sed -i -c -e '/^#/d' config_file
+ Y9 T/ E6 E8 Y0 W! Ysed去除空行： sed -i -c -e '/^$/d' config_file
- k3 i* I- Y$ Msed去空行和注释行：sed -i -c -e '/^$/d;/^#/' config_file

admin

#sed -i "/Listen 80/s/Listen 80/Listen $aip:80/g" /etc/httpd/conf/httpd.conf