Video: Kuv yuav pom 10 kab kawg ntawm cov ntaub ntawv hauv Linux li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
taub hau -15 /etc/passwd
Saib ntawm kawg ob peb kab ntawm cov ntaub ntawv , siv tus Tsov tus tw. tail ua haujlwm tib yam li lub taub hau: ntaus tus Tsov tus tw thiab lub filename kom pom cov kawg 10 kab ntawm qhov ntawd ntaub ntawv , los yog ntaus tail-number filename kom pom cov kawg tus lej kab ntawm ntaub ntawv . Sim siv tus Tsov tus tw los saib kawg tsib kab ntawm koj.
Tsis tas li ntawd, koj puas pom 10 kab kawg ntawm cov ntaub ntawv hauv Linux li cas?
Tus Tsov tus tw hais kom ua, los ntawm lub neej ntawd, tus kawg 10 kab ntawm a text file hauv Linux . Cov lus txib no tuaj yeem pab tau zoo thaum kuaj xyuas cov haujlwm tsis ntev los no hauv lub cav cov ntaub ntawv . Hauv daim duab saum toj no koj tuaj yeem ua tau saib tias cov kawg 10 kab ntawm /var/log/messages ntaub ntawv tau nthuav tawm. Lwm qhov kev xaiv uas koj yuav nrhiav ke yog qhov kev xaiv -f.
Tom qab ntawd, lo lus nug yog, Kuv yuav pom qhov kawg ntawm cov ntaub ntawv hauv Linux li cas? Lub tail command yog lub hauv paus Linux siv tau los siv saib kawg ntawm cov ntawv cov ntaub ntawv . Koj tuaj yeem siv ua raws hom rau saib cov kab tshiab raws li lawv tau ntxiv rau ib ntaub ntawv hauv lub sijhawm tiag tiag. Tail zoo ib yam li lub taub hau siv, siv rau saib pib ntawm cov ntaub ntawv.
Yog li ntawd, kuv yuav luam 10 kab kawg ntawm cov ntaub ntawv hauv Linux li cas?
Linux Tail command syntax Tail yog ib qho lus txib uas luam tawm ob peb kawg tus lej ntawm kab ( 10 kab los ntawm default) ntawm ib yam ntaub ntawv , ces terminates. Piv txwv 1: Los ntawm lub neej ntawd "tail" luam tawm kawg 10 kab ntawm ib cov ntaub ntawv , ces tawm. raws li koj tau pom, qhov no prints lub kawg 10 kab ntawm /var/log/messages.
Yuav ua li cas koj grep thawj 10 kab?
lub taub hau yuav output lub thawj 10 kab (siv qhov - kev xaiv), thiab tom qab ntawd koj tuaj yeem xa cov zis rau grep ua . Koj tuaj yeem siv cov hauv qab no kab : taub hau - n 10 ua /path/to/file | grep ua
Pom zoo:
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
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