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Sed 替换帮助

tag-icon • tag-icon linux sed replace
Sed 替换帮助

我需要一些 sed 替换方面的帮助：

sed -ri 's#logging {
/*      If you want to enable debugging, eg. using the 'rndc trace' command,
 *      named will try to write the 'named.run' file in the $directory (/var/named").
 *      By default, SELinux policy does not allow named to modify the /var/named" directory,
 *      so put the default debug log file in data/ :
 */
    channel default_debug {
            file "data/named.run";
            severity dynamic;
    };
};
#logging {
/*      If you want to enable debugging, eg. using the 'rndc trace' command,
 *      named will try to write the 'named.run' file in the $directory (/var/named").
 *      By default, SELinux policy does not allow named to modify the /var/named" directory,
 *      so put the default debug log file in data/ :
 */
    channel default_debug {
            file "data/named.run";
            severity dynamic;
    };
category security { null; };
};
#g' /etc/named.conf

基本上，我试图在很多系统上将“category security { null; };”添加到 /etc/named.conf（不同服务器上的行号不同），但 sed 失败了。

非常感谢您的任何提示和建议。

答案1

创建一个文件并输入此

/severity dynamic;/ {
N
s/\( *};\)/\1\ncategory security {null;};/g
}

然后保存并像这样运行

sed -f file /etc/named.conf

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