You can also use the grep command to find an exact match by using the beginning(^) and ending($) character. As you can see, the above command is unable to print all lines that contain the word “webservertalk“. That means this command does not work if you want to find the whole word in the middle of the line.
How do I grep a specific string in Linux?
Nrhiav Cov Qauv Nrog grep
- Txhawm rau tshawb nrhiav ib txoj hlua tshwj xeeb hauv cov ntaub ntawv, siv grep hais kom ua. …
- grep yog case sensitive; uas yog, koj yuav tsum phim tus qauv nrog rau cov tsiaj ntawv loj thiab cov tsiaj ntawv me:
- Nco ntsoov tias grep ua tsis tiav hauv thawj zaug sim vim tias tsis muaj qhov nkag tau pib nrog tus lej a.
How do you grep an exact string?
Qhia cov kab uas phim ib txoj hlua nrhiav
Txhawm rau luam tawm tsuas yog cov kab uas ua tiav nrog cov hlua tshawb nrhiav, ntxiv qhov kev xaiv -x. Cov zis qhia tau hais tias tsuas yog cov kab nrog qhov tseeb match. Yog tias muaj lwm cov lus lossis cov cim hauv tib kab, grep tsis suav nrog nws hauv cov txiaj ntsig tshawb fawb.
How do you grep an exact word in Unix?
Qhov yooj yim tshaj ntawm ob cov lus txib yog siv grep's -w xaiv. Qhov no yuav pom tsuas yog kab uas muaj koj lub hom phiaj lo lus ua ib lo lus tiav. Khiav cov lus txib "grep -w hub" tiv thaiv koj cov ntaub ntawv lub hom phiaj thiab koj tsuas yog pom cov kab uas muaj lo lus "hub" ua tiav lo lus.
How do you match exact strings?
These are usually used to detect the beginning and the end of a line. However this may be the correct way in this case. But if you wish to match an exact word the more elegant way is to use 'b'. In this case following pattern will match the exact phrase’123456′.
PS EF hais kom ua hauv Linux yog dab tsi?
Cov lus txib no yog siv los nrhiav PID (Process ID, Cim tus lej ntawm cov txheej txheem) ntawm cov txheej txheem. Txhua tus txheej txheem yuav muaj tus lej tshwj xeeb uas hu ua PID ntawm cov txheej txheem.
Dab tsi yog grep hauv Linux hais kom ua?
Koj siv grep hais kom ua nyob rau hauv Linux lossis Unix-based system rau ua cov ntawv tshawb fawb rau cov txheej txheem ntawm cov lus lossis cov hlua. grep sawv cev rau Kev Tshawb Fawb Ntiaj Teb rau Kev Tshaj Tawm Tsis tu ncua thiab luam tawm.
Koj grep cov cim tshwj xeeb li cas?
Kom phim tus cwj pwm uas tshwj xeeb rau grep -E, muab ib tug backslash ( ) nyob rau hauv pem hauv ntej ntawm tus cwj pwm. Nws yog feem ntau yooj yim dua los siv grep –F thaum koj tsis xav tau cov qauv tshwj xeeb txuam.
Kuv siv nrhiav hauv Linux li cas?
Piv txwv
- nrhiav. - npe thisfile.txt. Yog tias koj xav paub yuav ua li cas nrhiav cov ntaub ntawv hauv Linux hu ua thisfile. …
- nrhiav /home -name *.jpg. Saib tag nrho. jpg cov ntaub ntawv hauv / tsev thiab cov npe hauv qab nws.
- nrhiav. - hom f -empty. Nrhiav ib cov ntaub ntawv khoob hauv daim ntawv teev npe tam sim no.
- nrhiav /home -user randomperson-mtime 6 -iname “.db”
How do you grep two strings at once?
Yuav ua li cas kuv grep rau ntau tus qauv?
- Siv ib qho lus hais hauv tus qauv: grep 'pattern *' file1 file2.
- Tom ntej no siv txuas cov kab lus tsis tu ncua: egreg 'pattern1|pattern2' * . py.
- Thaum kawg, sim cov laus Unix plhaub/oses: grep -e pattern1 -e pattern2 *. pl.
- Lwm qhov kev xaiv rau grep ob txoj hlua: grep 'word1|word2' input.
Kuv yuav grep cov ntaub ntawv hauv Linux li cas?
Yuav ua li cas siv grep hais kom ua hauv Linux
- Grep hais kom ua Syntax: grep [xaiv] Qauv [FILE…] …
- Piv txwv ntawm kev siv 'grep'
- grep foo /file/name. …
- grep -i "foo" /file/name. …
- grep ' yuam kev 123' /file/name. …
- grep -r “192.168.1.5” /etc/ …
- grep -w "foo" /file/name. …
- egrep -w 'word1|word2' /file/name.
Yuav ua li cas koj grep ib lo lus?
Extract ib lo lus siv grep
- UAID: a062832a; UID: Z6IxbK9; UUID: null; ……
- UAID: a062832a; UID: Z6IxbK9; ……
- UID: Z6IxbK9; UUID: null; ……