How delete all commented lines in Linux?

How delete all commented lines in Linux?

Following grep command assumes that each comment starts with single # character at the beginning of the line. To remove or ignore all comments from a file a following grep command can be used: $ grep -v ^\# config.

How do I remove inline comments?

To delete an inline comment, hover over the comment with your mouse and click the trash can icon that appears above the comment. If you accidentally remove a comment, you can undo this change by clicking Undo in the notification that appears upon deletion, located at the top of the paper.

How do I remove comments from a Word doc?

Click the Review tab and click Next on the Comments group to advance from one comment to the next. To remove a comment, you must delete it. Click the Review tab >Delete to delete the comment that is highlighted, or click on the Delete down arrow, and click Delete or Delete All Comments in Document.

How to remove comment lines and empty lines in SED?

(3) Lastly, on OSX at least, the @paxdiablo solution in which the first clause turns comment lines into blank lines, and the second clause strips blank lines (including what were originally comments) doesn’t work. It seems to be more portable to make both clauses /d delete actions as I’ve done.

How to comment and uncomment a line in a file?

POSIX awk doesn’t offer in-place updating (neither does POSIX sed, incidentally), hence the output is first captured in a temporary file and that file then replaces the original on success. Quick example of how to comment and uncomment a line in a file. Thanks for contributing an answer to Stack Overflow!

How to delete C style comments in Linux?

So you could do something like to first delete lines that consist entirely of // characteristic_comment_to_delete, then substitute any remaining occurrences. (I changed your & to # to avoid confusion with the sed & replacement operator).

How to delete comments from the beginning of a line?

If you want to change it in place, add the -i switch: This will delete from any # to the end of the line, ignoring any context. If you use # anywhere where it’s not a comment (like in a string), it will delete that too. If comments can only start at the beginning of a line, do something like this: