linux - 如何用 sed 替换文件中的多行注释

Question

我有各种文件 php html xml，其中 copyright 通知包含在 top 中或在 2-3 行之后像这样顶

/**
 * Copyright (c)  2014
 * All rights reserved.
 * bla bla many lines like this
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

现在我想从所有文件中删除所有文本。

如何使用 sed 删除

我只知道基本的 sed 但我不知道如何处理多行

Answer 1

$ cat file
1
2
/**
 * Copyright (c)  2014
 * All rights reserved.
 * bla bla many lines like this
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
3
4
/* and here is another comment
 * you presumably want to keep
 */
5
6

$ awk '/^\/\*/{c++} c!=1; /^ \*\//{c++}' file
1
2
3
4
/* and here is another comment
 * you presumably want to keep
 */
5
6