Grep: Qoraalka Shell Shell iyadoo la adeegsanayo Taliska Grep Terminal

Amarka "grep" ee Nidaamyada Hawlgalka Bilaashka ah sida GNU / Linux waa amar aad u qiimo badan oo waxtar leh. Magaceedu wuxuu ka yimid weedha ku qoran Ingiriisiga: «Global Regular Expression Print» waxaana loo adeegsadaa in lagu qabto hawsha raadinta, iswaafajinta iyo soo bandhigida qaabka raadinta ama muujinta joogtada ah ee hal (1) feylal ama dhowr faylal qoraal ah.

Asal ahaan amarka «grep» wuxuu raadiyaa qaabka lagu muujiyey xuduudaha amarka taliska, wuxuuna daabacayaa natiijooyinka la helay kadib tilmaamaha tilmaamaha taliska amarka., kaas oo noqon kara: Shaashadda ama Faylka Wax soo Saarka.

Hordhaca amarka "grep"

Horeba qoraallo hore oo isla blog ah, sida kan «Qaar ka mid ah amarrada aasaasiga ah ee ...»Waxaan ka wada hadalnay adeegsiga aasaasiga ah ee amarkan weyn, laakiin Daabacaaddan waxaan ku arki doonnaa adeegsi dhexdhexaad ah oo horumarsan oo ah amarka "grep" isla markaana ku dhex jira amarro shaqeyn oo waxtar leh oo fududeyn kara howlaha dhabta ah qaarkood. qoraalladayada qolofkeenna dhexdooda ama si toos ah xarunta si loo gaaro natiijo deg deg ah oo ku saabsan hawl gaar ah in la qabto

Tusaalooyin wax ku ool ah

Eeg booskayaga / meeshayagu

print waxyaabaha ku jira diiwaankayaga hadda jira adoo adeegsanaya geed hage garaaf ah:

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'

Tusaale:

Abuur lambar sir ah oo kadis ah 30 xaraf dherer ahaan

Abuur xargo aan kala sooc lahayn gudaha / dev / urandom ka dibna dooro oo soo bandhig hal (1) adoo adeegsanaya shaandheyn leh «grep» amarka loogu talagalay kaliya jilayaasha alphanumeric, oo leh xajmiga cabirka 30-ka xarfood ee ugu horeeya, kana takhalusaya dhamaan qadka quudinta.

strings /dev/urandom | grep -o '[[:alnum:]]' | head -n 30 | tr -d '\n'; echo

Tusaale:

Abuur shax kooban oo xiriir ah

Ku muuji qaab garaaf ah (shax) oo soo koobay tirada isku-xirka shabakadda gudaha iyo dibedda ee lagu ogaado amarka "netstat" ee martigeliyaha waqti cayiman.

netstat -an | grep ESTABLISHED | awk '{print $5}' | awk -F: '{print $1}' | sort | uniq -c | awk '{ printf("%s\t%s\t",$2,$1) ; for (i = 0; i < $1; i++) {printf("*")}; print "" }'

Tusaale:

Waxaa sidoo kale loo isticmaali karaa in lagu soo saaro shax kooban oo ku saabsan tirada isku xirnaanta nooca iyaga ah, sida hoos ka muuqata:

netstat -ant | awk '{print $NF}' | grep -v '[a-z]' | sort | uniq -c

Tusaale:

Ka hel xarig (hannaan) waddo dhexdeeda

Meel ku hel oo soo bandhig dhammaan tartamada qaab ku jira magacyada faylka ama faylka. Isticmaalka cabirrada si loo gaaro tan waa: -R (Soo noqnoqoshada maamul hoosaadyada), -n (Muuji tirooyinka xariiqda isbarbar dhaca), -i (Iska ilow kiis sare iyo ka hoose), -s (Cadaadiska 'ma jiraan farriimo "Mana" awoodi karin waa la aqrinayaa "), -I (Iska indhatir binaries in search).

grep -RnisI  *

Waxaa sidoo kale loo isticmaali karaa qaab aad u horumarsan haddii lagu dhex isticmaalo isla amarka isla markiiba iyadoo la raacayo "hel" amarka si loo helo qaab ka mid ah nooca faylka horay loo sii qeexay. sida hoos ka muuqata:

find /opt/MilagrOS -name "*.txt" -exec grep -RnisI "MilagrOS" {} \;

Ogow tirada xogta ku jirta xusuusta RAM

Tani waxay faa iido u leedahay in si sax ah loo ogaado inta xog ah (macluumaad) ah ee la sugayo in lagu qoro diskiga adag waana lagama maarmaan in lagu qasbo dib u bilaabid ama daminta kombiyuutarka.

grep ^Dirty /proc/meminfo

Ogow cinwaankayaga WAN IP

Had iyo jeer waa wax aad u faa'iido badan in la ogaado WAN IP-ga si otomaatig ah oo ka socda terminaalka kadibna loo gudbiyo cabbirkaas hawl kale oo otomaatig ah. Tusaalahani wuxuu adeegsanayaa adeegga DynDNS si loo helo.

curl -s http://checkip.dyndns.org/ | grep -o "[[:digit:].]\+"

Liis garee qalabka ku xiran qeybta Shabakadda

Isticmaalka loop ee amarka "ping" isla markaana ku shaandheeyno natiijada "grep" amarka, waxaan ku xaqiijin karnaa kombuyuutarradeena ku xiran shabakadda adeegga ping-ka oo awood u leh iyadoon loo baahneyn aaladda NMap.

for i in {1..10}; do ping -c 1 -W 1 192.168.0.$i | grep 'from'; done

Tusaale:

Si aad u liis garaysid cinwaanka IP-ga ee raadraaca waxaad sameyn kartaa adeegsi aad u horumarsan oo xariiqdan ah, adigoo sifeeya natiijooyinka amarka "grep" adoo adeegsanaya amarrada "awk" iyo "cut", sida hoos ka muuqata:

for i in {100..110}; do ping -c 1 -W 1 192.168.0.$i | grep 'from'; done | awk '{ print $4 }' | cut -d ":" -f 1

Tusaale:

Tusaalooyinkan khadadka taliska adoo adeegsanaya amarka dufanka. Waxaana loo isticmaali karaa in si toos ah looga isticmaalo qunsuliyada ama si aan toos ahayn adoo u gelinaya qoraal (hawl otomaatig ah).

Qoraalka xiga ee Shell Scripting waxaan ku baadhi doonnaa amarro kale.

Hadaad rabto inaad waxbadan kabarato amarka «grep», booqo xiriiriyahan «DEBIAN Wiki»Iyo hadaad rabto inaad waxbadan ka barato Qoraalka Shell ee ku qoran Blog-keena, waxaad eegi kartaa qoraalladayada kale ee mowduuca ku saabsan, adigoo gujinaya halkan: Qorista DesdeLinux