从文件中删除所有以 # 开头的行 [英] Delete all lines beginning with a # from a file

问题描述

文件中所有带有注释的行都以 # 开头.如何删除以 # 开头的所有行(仅那些行)?其他包含 # 但不在行首的行应该被忽略.

All of the lines with comments in a file begin with #. How can I delete all of the lines (and only those lines) which begin with #? Other lines containing #, but not at the beginning of the line should be ignored.

推荐答案

这可以通过 sed 单行:

sed '/^#/d'

这表示，找到所有以 # 开头的行并删除它们，留下所有其他内容."

This says, "find all lines that start with # and delete them, leaving everything else."

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