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ru.unix.bsd
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From : mz1@stlport.org 2:5020/400 17 Nov 2006 20:59:58
To : Valentin Davydov
Subject : Re: awk RE
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Valentin Davydov <val@sqdp.trc-net.co.jp> wrote:
> $ man awk
> Patterns are arbitrary Boolean combinations (with ! || &&) of regular
> expressions and relational expressions. Regular expressions are as in
> egrep; see grep(1). Isolated regular expressions in a pattern apply to
> the entire line. Regular expressions may also occur in relational
> expressions, using the operators ~ and !~. /re/ is a constant regular
> expression; any string (constant or variable) may be used as a regular
> expression, except in the position of an isolated regular expression in
> a pattern.
>
> $ echo 000111 | egrep '^0{3}'
> 000111
> $ echo 000111 | awk '/^0{3}/'
> $
>
> Это очередная бага в авке или я чего-то не понимаю?
>
> Вал. Дав.
Далее оттуда же:
For /regular expression/ patterns, the associated statement is exe-
cuted for each input record that matches the regular expression.
Т.е. надо просто матча недостаточно, нужно что-то сделать с ним:
$ echo 000111 | awk '/^0{3}/p'
000111
Андрей Левочкин
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|
awk RE |
Valentin Davydov |
17 Nov 2006 20:35:18 |
 Re: awk RE |
mz1@stlport.org |
17 Nov 2006 20:59:58 |
 Re: awk RE |
Valentin Davydov |
17 Nov 2006 21:37:07 |
 awk RE |
Artem S Ignatiev |
18 Nov 2006 02:24:40 |
|
Re: awk RE |
Alexander Kolesnikoff |
17 Nov 2006 21:38:09 |
|
Re: awk RE |
Auster |
18 Nov 2006 18:28:18 |
 Re: awk RE |
Valentin Davydov |
20 Nov 2006 10:06:22 |
|
Re: awk RE |
Kirill Nuzhdin |
20 Nov 2006 11:40:23 |
|
Re: awk RE |
Auster |
20 Nov 2006 13:17:21 |
|
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