How do you display the 10th line of a file in Unix?
Hauv qab no yog peb txoj hauv kev kom tau txais nth kab ntawm cov ntaub ntawv hauv Linux.
- taub hau/tail. Tsuas yog siv kev sib xyaw ntawm lub taub hau thiab tus Tsov tus tw lus txib yog qhov yooj yim tshaj plaws. …
- ua sed. Muaj ob peb txoj hauv kev zoo los ua qhov no nrog sed . …
- awk. awk muaj qhov sib txawv ntawm NR uas ua raws cov ntaub ntawv / kwj kab zauv.
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.
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.
Peb yuav mus rau qhov pib ntawm kab li cas?
Mus rau qhov pib ntawm kab hauv kev siv: "CTRL + ib". Txhawm rau nkag mus rau qhov kawg ntawm kab hauv kev siv: "CTRL + e".
Head command yog dab tsi?
The head command is a command-line utility for outputting the first part of files given to it via standard input. It writes results to standard output. By default head returns the first ten lines of each file that it is given.
How do you use head?
Yuav Siv Lub Taub Hau Hais kom ua li cas
- Nkag mus rau lub taub hau hais kom ua, ua raws li cov ntaub ntawv uas koj xav pom: taub hau /var/log/auth.log. …
- To change the number of lines displayed, use the -n option: head -n 50 /var/log/auth.log.
Kuv yuav nyeem cov ntawv nyeem hauv Unix li cas?
Siv cov kab hais kom ua mus rau lub Desktop, thiab tom qab ntawd ntaus cat myFile. txt . Qhov no yuav luam cov ntsiab lus ntawm cov ntaub ntawv rau koj cov kab hais kom ua. Qhov no yog tib lub tswv yim zoo li siv GUI ob zaug-nias ntawm cov ntawv nyeem kom pom nws cov ntsiab lus.
NR yog dab tsi hauv awk command?
NR yog AWK built-in variable thiab nws txhais tau tias muaj pes tsawg cov ntaub ntawv raug ua tiav. Kev Siv : NR tuaj yeem siv rau hauv kev ua haujlwm thaiv sawv cev rau cov kab uas tau ua tiav thiab yog tias nws siv hauv END nws tuaj yeem luam tawm cov kab tag nrho. Piv txwv : Siv NR los luam cov kab zauv hauv ib cov ntaub ntawv siv AWK.
How do I find a line number in Unix?
Yog tias koj twb nyob hauv vi, koj tuaj yeem siv goto hais kom ua. Txhawm rau ua qhov no, nias Esc, ntaus tus lej kab, thiab tom qab ntawd nias Shift-g . Yog tias koj nias Esc thiab tom qab ntawd Shift-g yam tsis qhia tus lej kab, nws yuav coj koj mus rau kab kawg hauv cov ntaub ntawv.