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搜索 HTM 文件并在第一行添加

[英]Search on HTM Files and add at first line

I can't find the good way to search which HTM* files doesnt have DOCTYPE and add this DOCTYPE to this specific file我找不到搜索哪些 HTM* 文件没有 DOCTYPE 并将此 DOCTYPE 添加到此特定文件的好方法

I got the list of file with this :我得到了这样的文件列表:

for i in ` find . -name "*.htm*" -print`; do grep -L "DOCTYPE" $i;done;

But I can't find how to work on this list with sed但是我找不到如何使用 sed 处理这个列表

I tried :我试过 :

for i in ` find . -name "*.htm*" -print; grep -L "DOCTYPE"`; do sed -i '1i <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">' $i; done;

But it's adding the line on all HTM* files但它在所有 HTM* 文件上添加了这一行

Thanks谢谢

You should do this using the -exec option to find , rather than writing your own loop:您应该使用-exec选项来执行此操作find ,而不是编写自己的循环:

find . -name '*.htm?' -exec sed -i .bak '1 { /DOCTYPE/ ! i\
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
}' {} +

This finds all files ending in .htm followed by an optional extra character and executes the sed command.这将查找以.htm结尾的所有文件,后跟一个可选的额外字符并执行 sed 命令。 If /DOCTYPE/ isn't matched on the first line, the string is inserted.如果/DOCTYPE/在第一行不匹配,则插入字符串。

Using -exec with {} + means that the minimum number of instances of sed are used rather than running a separate instance per file found.-exec{} +意味着使用最少数量的 sed 实例,而不是为每个找到的文件运行单独的实例。

I added an argument after -i so that backup files are created with the suffix .bak .我在-i之后添加了一个参数,以便创建后缀为.bak备份文件。

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