Txhawm rau saib ob peb kab kawg ntawm cov ntaub ntawv, siv tus Tsov tus tw hais kom ua. tus Tsov tus tw ua haujlwm tib yam li lub taub hau: ntaus tus Tsov tus tw thiab lub npe file kom pom 10 kab kawg ntawm cov ntaub ntawv ntawd, lossis ntaus tus Tsov tus tw -number filename kom pom cov kab kawg ntawm cov ntaub ntawv.
Kuv yuav pom li cas 10 kab kawg ntawm cov ntaub ntawv hauv Linux?
Linux tail command syntax
Tail yog ib qho lus txib uas luam tawm ob peb kab kawg (10 kab los ntawm lub neej ntawd) ntawm qee cov ntaub ntawv, ces xaus. Piv txwv 1: Los ntawm lub neej ntawd "tail" luam tawm 10 kab kawg ntawm cov ntaub ntawv, ces tawm. raws li koj tau pom, qhov no luam tawm 10 kab kawg ntawm / var / log / messages.
Kuv yuav tshawb nrhiav kab los ntawm cov ntaub ntawv hauv Linux li cas?
Sau ib tsab ntawv bash los luam ib kab ntawm ib cov ntaub ntawv
- awk : $>awk '{if(NR==LINE_NUMBER) print $0}' file.txt.
- sed : $>sed -n LINE_NUMBERp file.txt.
- head : $>head -n LINE_NUMBER file.txt | tail -n + LINE_NUMBER Ntawm no LINE_NUMBER yog, kab xov tooj twg koj xav luam tawm. Piv txwv: Sau ib kab los ntawm ib daim ntawv.
Kuv yuav sau thawj 10 cov ntaub ntawv hauv Linux li cas?
cov ls txib txawm muaj kev xaiv rau qhov ntawd. Txhawm rau sau cov ntaub ntawv ntawm ob peb kab li sai tau, koj tuaj yeem siv -format = comma cais cov npe cov ntaub ntawv nrog commas raws li hauv cov lus txib no: $ ls -format = comma 1, 10, 11, 12, 124, 13, 14, 15, 16 pgs-xav.
Kuv yuav hloov pauv cov kab hauv Unix li cas?
Koj tuaj yeem siv tau tus-l chij suav kab. Khiav qhov kev pab cuam ib txwm thiab siv cov yeeb nkab los hloov mus rau wc. Xwb, koj tuaj yeem hloov cov zis ntawm koj qhov kev pab cuam mus rau ib daim ntawv, hais calc. tawm, thiab khiav wc ntawm cov ntaub ntawv ntawd.
Koj ua li cas qhia cov kab hauv cov ntaub ntawv hauv Linux?
Yuav suav cov kab hauv cov ntaub ntawv li cas hauv UNIX/Linux
- Cov lus txib "wc -l" thaum khiav ntawm cov ntaub ntawv no, tso tawm cov kab suav nrog rau lub npe file. $ wc -l file01.txt 5 file01.txt.
- Txhawm rau tshem tawm cov npe ntawm qhov tshwm sim, siv: $ wc -l < file01.txt 5.
- Koj tuaj yeem muab cov lus txib tso tawm rau wc hais kom ua siv yeeb nkab. Piv txwv li:
Kuv yuav suav cov kab hauv cov ntaub ntawv li cas hauv Linux?
Txoj hauv kev yooj yim tshaj plaws los suav cov kab, cov lus, thiab cov cim hauv cov ntawv nyeem yog siv Linux hais kom ua "wc" hauv davhlau ya nyob twg. Cov lus txib "wc" feem ntau txhais tau tias "cov lus suav" thiab nrog cov kev xaiv sib txawv ib tus tuaj yeem siv nws los suav cov kab, cov lus, thiab cov cim hauv cov ntawv nyeem.
Yuav ua li cas kuv grep ib kab los ntawm ib cov ntaub ntawv?
Cov lus txib grep tshawb nrhiav los ntawm cov ntaub ntawv, nrhiav kev sib tw rau cov qauv teev tseg. Txhawm rau siv nws ntaus grep, ces tus qauv peb tab tom nrhiav thiab thaum kawg lub npe ntawm cov ntaub ntawv (los yog cov ntaub ntawv) peb tab tom nrhiav hauv. Cov zis yog peb kab hauv cov ntaub ntawv uas muaj cov ntawv 'tsis'.
Dab tsi yog cov lus txib kom tso saib thawj 10 kab ntawm cov ntaub ntawv hauv Linux?
Lub taub hau hais kom ua, raws li lub npe implies, luam tawm sab saum toj N tus naj npawb ntawm cov ntaub ntawv ntawm qhov muab nkag. Los ntawm lub neej ntawd, nws luam thawj 10 kab ntawm cov ntaub ntawv teev tseg. Yog tias muaj ntau tshaj ib lub npe cov ntaub ntawv, cov ntaub ntawv los ntawm txhua cov ntaub ntawv yog ua ntej los ntawm nws cov ntaub ntawv npe.
Kuv yuav nrhiav tau Top 10 cov ntaub ntawv hauv Linux li cas?
Hais Kom Pom Kom Loj Tshaj Li 10 Cov Ntaub Ntawv Loj Tshaj Plaws Hauv Linux
- Du hais kom ua -h xaiv: tso saib qhov ntau thiab tsawg ntawm tib neeg cov ntawv nyeem tau, hauv Kilobytes, Megabytes thiab Gigabytes.
- du hais kom ua -s kev xaiv: Qhia tag nrho rau txhua nqe lus.
- du hais kom ua -x xaiv: Hla cov npe. …
- xaiv qhov kev xaiv -r xaiv: Rov qab los ntawm kev sib piv.
Dab tsi yog lo lus txib kom saib cov ntaub ntawv hauv Unix?
Linux Thiab Unix Command Kom Saib Cov Ntaub Ntawv
- miv command.
- lus txib tsawg.
- lus txib ntxiv.
- gnome-open hais kom ua lossis xdg-qhib cov lus txib (generic version) lossis kde-qhib cov lus txib (kde version) - Linux gnome/kde desktop hais kom qhib txhua cov ntaub ntawv.
- qhib hais kom ua - OS X tshwj xeeb hais kom qhib cov ntaub ntawv.