Date: Fri, 1 Sep 2023 17:50:06 +0800 From: Archimedes Gaviola <archimedes.gaviola@gmail.com> To: listac@nebelschwaden.de Cc: questions@freebsd.org Subject: Re: cut off last lines of a document Message-ID: <CAJFbk7Hd%2Ba1MFRy=Xb4U_Htxoe4VzuCBkUxbRWgHxveFm2bBdg@mail.gmail.com> In-Reply-To: <de480aeb-3f8c-4be2-8162-6d9f033f201a@nebelschwaden.de> References: <57be5495-97f8-4f22-9ae2-cd9712596e64@nebelschwaden.de> <de480aeb-3f8c-4be2-8162-6d9f033f201a@nebelschwaden.de>
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Hi Ede,
Please try.
head --lines=3D`wc -l <file> | awk '{print $1-3}'` <file>
Thanks,
Archimedes
On Fri, Sep 1, 2023 at 5:37=E2=80=AFPM Ede Wolf <listac@nebelschwaden.de> w=
rote:
> Am 01.09.23 um 10:43 schrieb Ede Wolf:
> > Hello,
> >
> > From a file/output with an unknown amount of lines, I would like to
> > filter out, or not display, the last 3 lines. Is there a way to archive
> > this?
> >
> > For those also using linux, there is a "head -n -3" for this. That
> > negative number option is not available on FreeBSD, but maybe there is
> > an alterative way of doing this? Preferably /bin/sh compatible.
> >
> > Thanks
> >
> > Ede
> >
>
> As a sidenote: If possible, I would like to avoid using "tail -r | tail
> -n +4 | tail -r" as well, as it again is specific to FreeBSD, so if
> there is a more universal solution, that would be preferred. Even though
> this of course is a FreeBSD mailing list.
>
>
>
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<div dir=3D"ltr"><div>Hi Ede,</div><div><br></div><div>Please try.</div><di=
v><br></div><div>head --lines=3D`wc -l <file> | awk '{print $1-3}=
'` <file></div><div><br></div><div>Thanks,</div><div>Archimedes<b=
r></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmai=
l_attr">On Fri, Sep 1, 2023 at 5:37=E2=80=AFPM Ede Wolf <<a href=3D"mail=
to:listac@nebelschwaden.de">listac@nebelschwaden.de</a>> wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left:1px solid rgb(204,204,204);padding-left:1ex">Am 01.09.23 um 10:43 sch=
rieb Ede Wolf:<br>
> Hello,<br>
> <br>
>=C2=A0 From a file/output with an unknown amount of lines, I would like=
to <br>
> filter out, or not display, the last 3 lines. Is there a way to archiv=
e <br>
> this?<br>
> <br>
> For those also using linux, there is a "head -n -3" for this=
. That <br>
> negative number option is not available on FreeBSD, but maybe there is=
<br>
> an alterative way of doing this? Preferably /bin/sh compatible.<br>
> <br>
> Thanks<br>
> <br>
> Ede<br>
> <br>
<br>
As a sidenote: If possible, I would like to avoid using "tail -r | tai=
l <br>
-n +4 | tail -r" as well, as it again is specific to FreeBSD, so if <b=
r>
there is a more universal solution, that would be preferred. Even though <b=
r>
this of course is a FreeBSD mailing list.<br>
<br>
<br>
</blockquote></div>
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