Âîïðîñû ïî ñêðèïòàì íà bash (shell)

**voidshah** · 05-05-2011, 17:27

Ïëç., ïîäñêàæèòå, ìîæíî ëè â shell-ñêðèïòàõ èñïîëüçîâàòü ìàññèâû? Èëè òàêîé âîçìîæíîñòè äëÿ bash â ïðîøèâêàõ íåò?! Ìîæåò âîïðîñ è ïîäíèìàëñÿ - äà íå íàøåë...

**ConstAntz** · 05-05-2011, 17:48

Originally Posted by voidshah

Ïëç., ïîäñêàæèòå, ìîæíî ëè â shell-ñêðèïòàõ èñïîëüçîâàòü ìàññèâû? Èëè òàêîé âîçìîæíîñòè äëÿ bash â ïðîøèâêàõ íåò?! Ìîæåò âîïðîñ è ïîäíèìàëñÿ - äà íå íàøåë...

Ìîè ïîïûòêè óñïåõîì íå óâåí÷àëèñü. Â awk - ïîëó÷èëîñü.

**voidshah** · 05-05-2011, 18:53

Ñïñ, áóäåì ñòðàäàòü ñ awk

offtop Ìîæåò êòî áóêâàðü íîðìàëüíûé ïî íåìó ïîäñêàæåò?

**ConstAntz** · 05-05-2011, 19:01

Originally Posted by voidshah

Ñïñ, áóäåì ñòðàäàòü ñ awk

offtop Ìîæåò êòî áóêâàðü íîðìàëüíûé ïî íåìó ïîäñêàæåò?

äåðæè áóêâàðü - http://ss64.com/bash/

**KRandall** · 17-09-2012, 11:53

Äîáðîãî âðåìåíè ñóòîê

Ïîìîãèòå ïîæàëóéñòà ñ ðåøåíèåì íåáîëüøîé çàäà÷è

Èç ôàéëîâ, ñãðóïïèðîâàííûõ ïî ïðåôèêñó 'Èìÿ.html' (äî ïåðâîãî çíàêà '-', âûäåëåíî ñèíèì) îñòàâèòü îäèí (ñàìûé ñâåæèé, åñëè ñãðóïïèðîâàíî áîëåå îäíîãî ôàéëà)

Code:

# ls -la
admin admin   85049 2012-09-15 23:35 Another.html-gzip-2883620-1043150-1347607303
admin admin   85049 2012-09-16 02:28 Another.html-gzip-2883620-1043150-1347745318
admin admin   68377 2012-09-15 23:36 Begin.html-gzip-2883711-354959-1347737586
admin admin   31600 2012-09-15 23:36 Content.html-gzip-2883623-424402-1347737434
admin admin   46154 2012-09-14 12:20 Content.html-gzip-2883623-475162-1347607301
admin admin 1707728 2012-09-16 13:33 Double.html-gzip-2883672-9165565-1347787944
admin admin 1707182 2012-09-14 12:19 File.html-gzip-2883673-9163898-1347601490
admin admin 1682905 2012-09-15 23:33 File.html-gzip-2883673-9141871-1347737585
admin admin 1708533 2012-09-15 23:24 File.html-gzip-2883673-9165565-1347736998
admin admin 1707728 2012-09-13 02:37 File.html-gzip-2883673-9165565-1347745334

Äîëæíî îñòàòüñÿ:

Code:

# ls -la
admin admin   85049 2012-09-16 02:28 Another.html-gzip-2883620-1043150-1347745318
admin admin   68377 2012-09-15 23:36 Begin.html-gzip-2883711-354959-1347737586
admin admin   31600 2012-09-15 23:36 Content.html-gzip-2883623-424402-1347737434
admin admin 1707728 2012-09-16 13:33 Double.html-gzip-2883672-9165565-1347787944
admin admin 1682905 2012-09-15 23:33 File.html-gzip-2883673-9141871-1347737585

Â íàïèñàíèè ñêðèïòîâ íå î÷åíü ñèë¸í, àëãîðèòìû â ãîëîâå åñòü, íî íå çíàþ, êàêèì èíñòðóìåíòîì èõ ðåàëèçîâàòü. Ïîèñê ðåçóëüòàòîâ íå äàë.

P.S. Ïðåäïîëàãàåòñÿ çàïóñêàòü èç cron. Íà âõîäå ñêðèïòà - ïóòü ê êàòàëîãó, ñ êîòîðîãî íà÷èíàòü îáðàáîòêó. Äëÿ óíèâåðñàëüíîñòè õîðîøî áû ñäåëàòü ðåêóðñèâíóþ îáðàáîòêó ïîäêàòàëîãîâ

Ñïàñèáî

**Asgard** · 17-09-2012, 12:23

Ãëÿíü òóò
http://pfzim.narod.ru/rotate/index.html

**KRandall** · 17-09-2012, 12:36

Ñïàñèáî, íî ýòî íåìíîãî íå òî.

Â ìî¸ì ñëó÷àå ïðåôèêñ ó ôàéëîâ ðàçíûé, äàòû ñîçäàíèÿ â èìåíè ôàéëà íåò è åùå íóæåí êàêîé-òî ìåõàíèçì âûáîðà ôàéëà ïî äàòå ñîçäàíèÿ èç ãðóïïû ôàéëîâ ñ îäíèì ïðåôèêñîì

Âîò íàïðèìåð òàêîé àëãîðèòì.
Âûâîäèì ñïèñîê ôàéëîâ â êàòàëîãå ñ ïîìîùüþ tree (ñîðòèðóåì ïî äàòå ñîçäàíèÿ ïî óáûâàíèþ - tree -D -N -C -t -i -o tree.txt êàòàëîã)

Code:

[Sep 16 13:33]  Double.html-gzip-2883672-9165565-1347787944
[Sep 16 02:28]  Another.html-gzip-2883620-1043150-1347745318
[Sep 15 23:36]  Begin.html-gzip-2883711-354959-1347737586
[Sep 15 23:36]  Content.html-gzip-2883623-424402-1347737434
[Sep 15 23:35]  Another.html-gzip-2883620-1043150-1347607303
[Sep 15 23:33]  File.html-gzip-2883673-9141871-1347737585
[Sep 15 23:24]  File.html-gzip-2883673-9165565-1347736998
[Sep 14 12:20]  Content.html-gzip-2883623-475162-1347607301
[Sep 14 12:19]  File.html-gzip-2883673-9163898-1347601490
[Sep 13 02:37]  File.html-gzip-2883673-9165565-1347745334

Äàëåå äåëàåì öèêë ïî çàïèñÿì ôàéëà tree.txt.
Ïåðâàÿ çàïèñü (Double.html). Ôàéëîâ ñ òàêèì ïðåôèêñîì â öèêëå íå íàõîäèì - íè÷åãî íå äåëàåì.
Âòîðàÿ çàïèñü (Another.html). Íàõîäèì ôàéë ñ òàêèì æå ïðåôèêñîì â 5-é çàïèñè, óäàëÿåì ôàéë ñ ýòèì èìåíåì è óäàëÿåì çàïèñè ñ íàéäåííûì ïðåôèêñîì èç ôàéëà tree.txt.
Òðåòüÿ çàïèñü (Begin.html). Ôàéëîâ ñ òàêèì ïðåôèêñîì â öèêëå íå íàõîäèì - íè÷åãî íå äåëàåì.
×åòâ¸ðòàÿ çàïèñü (Content.html). Íàõîäèì ôàéë ñ òàêèì æå ïðåôèêñîì â 8-é çàïèñè, óäàëÿåì ôàéë ñ ýòèì èìåíåì è óäàëÿåì çàïèñè ñ ýòèì ïðåôèêñîì èç ôàéëà tree.txt.
(Ïÿòàÿ çàïèñü (Another.html) - óäàëåíà íà âòîðîì øàãå).
Ïÿòàÿ çàïèñü (File.html). Íàõîäèì åùå 3 ôàéëà ñ òàêèì æå ïðåôèêñîì, óäàëÿåì èõ è óäàëÿåì çàïèñè ñ ýòèì ïðåôèêñîì èç ôàéëà tree.txt.
è ò. ä.

Îñòà¸òñÿ æåëàåìîå

Code:

[Sep 16 13:33]  Double.html-gzip-2883672-9165565-1347787944
[Sep 16 02:28]  Another.html-gzip-2883620-1043150-1347745318
[Sep 15 23:36]  Begin.html-gzip-2883711-354959-1347737586
[Sep 15 23:36]  Content.html-gzip-2883623-424402-1347737434
[Sep 15 23:33]  File.html-gzip-2883673-9141871-1347737585

Âîò êàê-òî òàê. Íå óìåþ ðåàëèçîâàòü ýòî ñ ïîìîùüþ êîìàíä linux

**ABATAPA** · 17-09-2012, 13:06

Originally Posted by KRandall

Ïîìîãèòå ïîæàëóéñòà ñ ðåøåíèåì íåáîëüøîé çàäà÷è

Ïîìîãàþ: åñòü find, åñòü ls ñ êëþ÷åì '-t'
Äàëåå, íàäåþñü, ïîíÿòíî.

**KRandall** · 17-09-2012, 13:33

Åñëè íå çàòðóäíèò, ÷óòü ïîäðîáíåå. Ïîêà íå ïîéìó, êàê ñ ïîìîùüþ ýòèõ êîìàíä ñëåïèòü íóæíûé àëãîðèòì
Õîòÿ áû â îáùèõ ÷åðòàõ ïî øàãàì

**ABATAPA** · 17-09-2012, 14:05

Originally Posted by KRandall

Åñëè íå çàòðóäíèò, ÷óòü ïîäðîáíåå. Ïîêà íå ïîéìó, êàê ñ ïîìîùüþ ýòèõ êîìàíä ñëåïèòü íóæíûé àëãîðèòì
Õîòÿ áû â îáùèõ ÷åðòàõ ïî øàãàì

Çíàåòå, ó÷èòü - ñëîæíåå, ÷åì äåëàòü ñàìîìó.
Â àðõèâå òåñòîâûå ôàéëû, è ñêðèïò íà perl.

parse.tgz

**Orex** · 17-09-2012, 15:59

Code:

#!/bin/sh

DIR="$1"

for file in `ls -1 $DIR | grep '^.*html-.*$'`
do

    name=`echo "$file" | awk -F "-" '{print $1}'`
    
    for subfile in `ls -t $DIR | grep ^$name-.*\$ | sed '1d'`
    do
        rm ${DIR}/${subfile}
    done

done

exit 0;

**ABATAPA** · 17-09-2012, 17:24

Originally Posted by Orex

[code]#!/bin/sh
do
rm ${DIR}/${subfile}
done

2. Ýòîò êîä íå áóäåò ðàáîòàòü ñ ïðîáåëàìè â èìåíàõ ôàéëîâ èëè êàòàëîãîâ.

**KRandall** · 17-09-2012, 19:09

Originally Posted by Orex

Code:

#!/bin/sh

DIR="$1"

for file in `ls -1 $DIR | grep '^.*html-.*$'`
do

    name=`echo "$file" | awk -F "-" '{print $1}'`
    
    for subfile in `ls -t $DIR | grep ^$name-.*\$ | sed '1d'`
    do
        rm ${DIR}/${subfile}
    done

done

exit 0;

Ñïàñèáî, ðàáîòàåò

À êàê ñäåëàòü ðåêóðñèþ ïî âëîæåííûì êàòàëîãàì?

**ABATAPA** · 17-09-2012, 19:20

Originally Posted by ABATAPA

Â àðõèâå òåñòîâûå ôàéëû, è ñêðèïò íà perl.

Âåðñèÿ äëÿ Perl < 5.11 (â ÷àñòíîñòè äëÿ Perl èç òåêóùåãî entware/optware):
parse-mipsel.tgz

Ñêðèïò òîëüêî ïå÷àòàåò èìåíà "íóæíûõ" ôàéëîâ, íå óäàëÿÿ "ëèøíèå"!
×òîáû óäàëÿòü, íóæíî äîáàâèòü îäíó ñòðî÷êó...

Äëÿ ðåêóðñèâíîãî îáõîäà êàòàëîãîâ ìîæíî èñïîëüçîâàòü `find -exec':

find /dir -type d -exec /path/to/parse-mipsel.pl {} \;

**Orex** · 18-09-2012, 08:02

Originally Posted by ABATAPA

2. Ýòîò êîä íå áóäåò ðàáîòàòü ñ ïðîáåëàìè â èìåíàõ ôàéëîâ èëè êàòàëîãîâ.

Code:

#!/bin/sh

DIR="$1"

for file in `ls -1 "$DIR" | grep '^.*html-.*$' | sed 's/ /~~~bs~~~/g'`
do

    name=`echo "$file" | awk -F "-" '{print $1}'`
    
    for subfile in `ls -t "$DIR" | grep ^$name-.*\$ | sed -e '1d' -e 's/ /~~~bs~~~/g'`
    do    
        rm "${DIR}/`echo "${subfile}" | sed 's/~~~bs~~~/ /g'`"
    done

done

exit 0;

Originally Posted by KRandall

À êàê ñäåëàòü ðåêóðñèþ ïî âëîæåííûì êàòàëîãàì?

Ïðî ðåêóðñèþ óæå íàïèñàëè:

Code:

find <êîðíåâîé êàòàëîã> -type d -exec <ïóòü ê ñêðèïòó> {} \;

è â òàêîì äóõå...

Thread: Âîïðîñû ïî ñêðèïòàì íà bash (shell)

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Óäàëåíèå ôàéëîâ ïî ïðåôèêñó è äàòå (ïîìîãèòå ñ ðåøåíèåì)

Óäàëåíèå ôàéëîâ ïî ïðåôèêñó è äàòå ñîçäàíèÿ

Ñïàñèáî

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