Date: Sat, 30 Jul 2005 14:35:31 -0500 From: Paul Schmehl <pauls@utdallas.edu> To: f-q <freebsd-questions@freebsd.org> Subject: Re: Shell script help Message-ID: <6F3E35504F64CB7D16926AA4@Paul-Schmehls-Computer.local> In-Reply-To: <20050730065757.GA96641@holestein.holy.cow> References: <E9E44D6085C02C80E233D138@Paul-Schmehls-Computer.local> <20050730065757.GA96641@holestein.holy.cow>
next in thread | previous in thread | raw e-mail | index | archive | help
--On July 30, 2005 2:57:57 AM -0400 Parv <parv@pair.com> wrote:
> in message <E9E44D6085C02C80E233D138@Paul-Schmehls-Computer.local>,
> wrote Paul Schmehl thusly...
>>
>> Running what I *thought* was the same sed command in the Makefile
>> of the port doesn't solve the problem of the formatting of the man
>> pages, but it doesn't generate any errors either:
>>
>> @${SED} -e '/man\.macros/r man.macros' -e '/man\.macros/d'
>> ${WRKSRC}/doc/${f} \
>> > ${WRKDIR}/${f}
>>
>> Can someone explain what the sed command is doing? The man page
>> isn't much help.
>
> In the 1st part, sed sends the output of file 'man.macros' to
> standard out if it exists (otherwise no worries) when sed sees the
> 'man\.macros' pattern.
>
> And the 2d part, just deletes that pattern.
>
> There in the sed(1) man page all is. Or, line by line try this ...
>
> rm -f q ; echo polka > p
> { echo p ; echo q; echo p; } | sed -e '/p/r p' -e '/p/d'
> { echo p ; echo q; echo p; } | sed -e '/p/r q' -e '/p/d'
>
Thanks! That was the answer. I had to fiddle with it for a while before I
understood what it was doing, but it does exactly what I need it to do now.
Paul Schmehl (pauls@utdallas.edu)
Adjunct Information Security Officer
University of Texas at Dallas
AVIEN Founding Member
http://www.utdallas.edu/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6F3E35504F64CB7D16926AA4>