How remove all rows contain specific text?

Question

Windows 10, Emacs 25.1 Suppose I has the next text

111111111111111111

hello

22222222

aaaahello

3333333333333333333333333333333

aabbbbbbbbhellocccccdddddddd

aaaaaaaaaaaaaaa

cccccccccccccccc

dddddddd

rhellorraaaa111111111

I want to delete all rows that contain text hello. How I can do this? Thanks.

Tobias · Accepted Answer · 2018-07-11 07:42:10Z

5

You can use the command delete-matching-lines via

M-x delete-matching-lines RET hello RET.

Note that tab-expansion helps a lot with typing command names at the minibuffer. You just need to type

M-x dele TAB ma TABRET hello RET.

answered Jul 11, 2018 at 7:42

Tobias

32.6k1 gold badge34 silver badges75 bronze badges

I use helm mode. It's show all commands. It's very helpful. Thanks. Command "delete-matching-lines" work fine.
– a_subscriber
Jul 11, 2018 at 8:37
2

In case anybody is wondering, delete-matching-lines is an alias for flush-lines. I came here to recommend that solution and then discovered that they are the same.
– MTS
Jul 11, 2018 at 17:01
Is there an analog for cutting?
– user19777
Sep 23, 2022 at 5:29
1

@Erwann Does kill-matching-lines what you mean by "cutting"? There is also copy-matching-lines if needed.
– Tobias
Sep 23, 2022 at 7:32
@Erwann "Cut" and "Paste" in other applications are very close to "Kill" and "Yank" in Emacs.
– Tobias
Sep 23, 2022 at 8:00

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