delete non-matching lines

delete non-matching lines

[Nachiket Gokhale]

How do I delete all lines starting with

"ESPN"

And, the opposite:

How do I delete all lines not starting with

"ESPN"

Thanks in advance,

-Nachiket

Re: delete non-matching lines

[Teemu Likonen]

On 2009-08-11 06:59 (-0700), Nachiket Gokhale wrote:
> How do I delete all lines starting with
>
> "ESPN"

M-x flush-lines RET ^ESPN RET

(or its alias M-x delete-matching-lines)

> How do I delete all lines not starting with
>
> "ESPN"

M-x keep-lines RET ^ESPN RET

For more info:

    C-h r m Other Repeating Search

Re: delete non-matching lines

[Pascal J. Bourguignon]

Nachiket Gokhale <gokhalen@gmail.com> writes:

> How do I delete all lines starting with
>
> "ESPN"

  M-x delete-matching-lines RET ^ESPN RET

>
> And, the opposite:
>
> How do I delete all lines not starting with
>
> "ESPN"

  M-x delete-matching-lines RET ^\([^E C-q C-j ]\|E[^S C-q C-j ]\|ES[^P C-q C-j ]\|ESP[^N C-q C-j ]\) RET
 
Or perhaps just:

  M-x delete-matching-lines RET ^\([^E]\|E[^S]\|ES[^P]\|ESP[^N]\) RET

if you are lucky.



You may also use:

  C-x h M-| grep    ESPN RET

or

  C-x h M-| grep -v ESPN RET

but this is cheating.

-- 
__Pascal Bourguignon__

Re: delete non-matching lines

[Xah Lee]

On Aug 11, 6:59 am, Nachiket Gokhale <gokha...@gmail.com> wrote:
> How do I delete all lines starting with
>
> "ESPN"
>
> And, the opposite:
>
> How do I delete all lines not starting with
>
> "ESPN"

LOL.

Type

Alt+x delete-matching-lines
Alt+x delete-non-matching-lines

with

^ESPN

  Xah
∑ http://xahlee.org/

☄

Re: delete non-matching lines

[Nachiket Gokhale]

On Aug 11, 11:25 am, Xah Lee <xah...@gmail.com> wrote:
> On Aug 11, 6:59 am, Nachiket Gokhale <gokha...@gmail.com> wrote:
>
> > How do I delete all lines starting with
>
> > "ESPN"
>
> > And, the opposite:
>
> > How do I delete all lines not starting with
>
> > "ESPN"
>
> LOL.
>
> Type
>
> Alt+x delete-matching-lines
> Alt+x delete-non-matching-lines
>
> with
>
> ^ESPN
>
>   Xah
> ∑http://xahlee.org/
>
> ☄

Thanks, everybody.

-Nachiket

Re: delete non-matching lines

[Martin]

Nachiket Gokhale writes:

> How do I delete all lines starting with
>
> "ESPN"
>
> And, the opposite:
>
> How do I delete all lines not starting with
>
> "ESPN"
>
> Thanks in advance,
>
> -Nachiket

delete-matching-lines		  M-x ... RET
   Delete lines containing matches for REGEXP.
delete-non-matching-lines	  M-x ... RET
   Delete all lines except those containing matches for REGEXP.

Martin
--
parozusa at web dot de