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
3 {1 a+ ~" P& I2 A. `sed去除空行： sed -i -c -e '/^$/d' config_file
5 U/ @5 S! Q/ b, ssed去空行和注释行：sed -i -c -e '/^$/d;/^#/' config_file

admin

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