From: "Шилов Сергей" <hsvhome@mail.ru>
To: ALT Linux sysadmin discuss <sysadmins@lists.altlinux.org>
Subject: Re: [Sysadmins] awk
Date: Wed, 30 Jul 2008 19:03:00 +0400
Message-ID: <E1KODCe-000Kgu-00.hsvhome-mail-ru@f17.mail.ru> (raw)
In-Reply-To: <200807301327.43114.ledest@gmail.com>
В сообщении от 30 июля 2008 Led написал:
> В сообщении от Wednesday 30 July 2008 12:41:05 Sergey Shilov написал(а):
> > В сообщении от 30 июля 2008 Aleksey E. Birukov написал:
> > > > Врядли. Я так понял, хотелось получить конкретный номерной match в
> > > > случае когда FS - regexp
> > >
> > > Да. Именно так.
> >
> > echo "aaa_bbb_ccc" | NNN=2 awk -F"_[bc]" '{ printf "field%i=%s\n",
> > (ENVIRON["NNN"]), $(ENVIRON["NNN"]) }
>
> "Номерной match" FS, а не field
>
Эээ..., тогда "в лоб":
из "aaa_bbb_ccc_bad" в цикле берем в M 2-й match регэкспа "_[bc]" и печатаем полученное :-)
echo "aaa_bbb_ccc_bad" | gawk -v N=2 -- '{ i = 0 ; S = $0 ; while ( match(S, /_[bc]/) != 0 ) { i++ ; M = substr(S, RSTART, RLENGTH) ; S = substr(S, RSTART+RLENGTH ) ; { if ( i == N ) { printf "%s\n", M ; break } } }'
По мотивам
http://www.math.spbu.ru/user/rus/cluster/Doc/Library/awk_baluev/awk_bal_oglav.shtml
с учетом фигурных скобок из
http://www.ln.com.ua/~openxs/projects/man/uman024.html
---
С уважением
С.Шилов
next prev parent reply other threads:[~2008-07-30 15:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-29 11:25 Aleksey E. Birukov
2008-07-29 20:11 ` Sergey Shilov
2008-07-29 20:57 ` Led
2008-07-30 7:16 ` Aleksey E. Birukov
2008-07-30 9:41 ` Sergey Shilov
2008-07-30 10:27 ` Led
2008-07-30 15:03 ` Шилов Сергей [this message]
2008-07-30 16:58 ` Aleksey E. Birukov
2008-07-30 17:17 ` Alexey Borisenkov
2008-07-30 20:10 ` Sergey Shilov
2008-07-30 18:12 ` Led
2008-07-30 20:51 ` Sergey Shilov
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