使用 ed 操作 find 匹配的文件

发布于 2024-09-01 04:56:16 字数 705 浏览 14 评论 0原文

遵循 bash-hackers wiki 的建议，我想要使用 ed 编辑文件。

特别是我想用 ed 而不是 sed 执行以下操作：

find . -type f -exec sed -i -e 's/a/b/g' {} \;

我发现 ed 没有像 sed 的 -e 这样的 opt ，所以据我所知，管道和 io 重定向是非交互式使用它的唯一方法。

因此，使用 bash 脚本中的 ed 执行与上述 sed 命令相同的操作将如下所示：

ed file_name <<<$'g/a/s//b/g\nw'

或者

echo $'g/a/s//b/g\nw' | ed file_name

但据我所知，在 find 的 -exec 中不可能涉及管道或 io 重定向。

我错过了什么吗？或者克服这个问题的唯一方法是使用循环？

for file in $(find . -type f -print); do ed $file <<<$'g/a/s//b/g\nw'; done;

原文

Following the bash-hackers wiki's recommendation, I want to edit files using ed.

In particular I want to do the following with ed instead of sed:

find . -type f -exec sed -i -e 's/a/b/g' {} \;

I see that ed doesn't have opt like sed's -e, so as far as I know, pipes and io redirections are the only way to work with it non-interactively.

So, using ed from a bash script to do the same as the above sed command would look like:

ed file_name <<<
Or
echo 
But as far as I know it is impossible to involve pipes or io redirections within find's -exec.
Do I miss something? or is the only way to overcome this is to use loops?
for file in $(find . -type f -print); do ed $file <<<
g/a/s//b/g\nw'

Or

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.
Do I miss something? or is the only way to overcome this is to use loops?

g/a/s//b/g\nw' | ed file_name

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.
Do I miss something? or is the only way to overcome this is to use loops?

g/a/s//b/g\nw'

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.

Do I miss something? or is the only way to overcome this is to use loops?

g/a/s//b/g\nw'; done;g/a/s//b/g\nw'

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.

Do I miss something? or is the only way to overcome this is to use loops?

g/a/s//b/g\nw' | ed file_name

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.

Do I miss something? or is the only way to overcome this is to use loops?

g/a/s//b/g\nw'

But as far as I know it is impossible to involve pipes or io redirections within find's -exec.

Do I miss something? or is the only way to overcome this is to use loops?

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南七夏 2024-09-08 04:56:16

find . -type f -exec bash -c 'ed -s "$2" <<< "$1"' _ 
POSIX 版本：
find . -type f -exec sh -c 'printf "%s\n" "g/a/s//b/g" w | ed -s "$1"' _ {} \;

使用 ed 而不是 sed -i 的主要原因是 ed 编辑文件，而 sed -i 覆盖文件，如果您碰巧有不想破坏的链接，那就是一个问题。
g/a/s//b/g\nw' {} \;

POSIX 版本：

使用 ed 而不是 sed -i 的主要原因是 ed 编辑文件，而 sed -i 覆盖文件，如果您碰巧有不想破坏的链接，那就是一个问题。

find . -type f -exec bash -c 'ed -s "$2" <<< "$1"' _ 
And a POSIX version:
find . -type f -exec sh -c 'printf "%s\n" "g/a/s//b/g" w | ed -s "$1"' _ {} \;

The main reason to use ed over sed -i is that ed edits files while sed -i overwrites files, and that's a problem if you happen to have links you don't want to break.
g/a/s//b/g\nw' {} \;

And a POSIX version:

The main reason to use ed over sed -i is that ed edits files while sed -i overwrites files, and that's a problem if you happen to have links you don't want to break.

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