4 Teb. Ib txoj kev siv awk. Hla ob qhov kev sib cav rau tsab ntawv, kab zauv thiab tus nqi rau ntxig. Tsab ntawv nce tus naj npawb ntawm cov teb (NF) thiab dhau mus dhau qhov kawg kom txog rau thaum qhov chaw qhia thiab ntxig rau qhov tshiab tus nqi.
Kuv yuav ntxiv ib kem rau ib cov ntaub ntawv li cas?
Ntxiv kab rau ib daim ntawv Word
- Txhawm rau siv cov kab rau tsuas yog ib feem ntawm koj cov ntaub ntawv, nrog koj tus cursor, xaiv cov ntawv uas koj xav format.
- Ntawm nplooj ntawv Layout tab, nyem kab, tom qab ntawd nyem Ntxiv Kab.
- Nyem Xaiv cov ntawv los ntawm Apply to box.
Koj tsim kab hauv Linux li cas?
Piv txwv li:
- Piv txwv tias koj muaj cov ntawv nyeem nrog cov ntsiab lus hauv qab no:
- Txhawm rau tso saib cov ntaub ntawv ntawm cov ntawv nyeem nyob rau hauv daim ntawv ntawm kab, koj nkag mus rau cov lus txib: kem filename.txt.
- Piv txwv li, koj xav txheeb rau hauv cov kab sib txawv cov kev nkag uas tau muab cais los ntawm cov delimiters tshwj xeeb.
Kuv yuav ntxiv ib kab rau CSV cov ntaub ntawv hauv Linux li cas?
txiav hais kom ua nyob rau hauv cov lus txib saum toj no ua ntej txiav thawj daim teb ( -f1 uas indexed nrog comma delimiter ( -d. )) los ntawm file1 (txiav -d, -f1 file1), ces txiav thiab muab tshuaj txhuam ob daim teb ntawm file2 (txiav -d, -f2 file2 ) thiab thaum kawg txiav thiab muab tso rau kab thib peb ( -f3 ) mus rau tom ntej (– ) ntawm file1 (txiav -d, -f3- file1) dua.
Koj ntxiv ib kab rau cov ntaub ntawv hauv Linux li cas?
Ntaus tus miv hais kom ua ua raws li cov ntaub ntawv lossis cov ntaub ntawv koj xav tau ntxiv rau qhov kawg ntawm cov ntaub ntawv uas twb muaj lawm. Tom qab ntawd, ntaus ob qhov tso zis redirection cim ( >> ) ua raws li lub npe ntawm cov ntaub ntawv uas twb muaj lawm koj xav ntxiv rau.
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.
Cas koj sum in awk?
Yuav Ua Li Cas Sum Values hauv Awk
- BEGIN{FS=”t”; sum=0} BEGIN block tsuas yog ua tiav ib zaug thaum pib ntawm qhov program. …
- {sum+=$11} Ntawm no peb ntxiv cov lej sib txawv los ntawm tus nqi hauv daim teb 11 rau txhua kab.
- END{print sum} Qhov END thaiv tsuas yog ua tiav ib zaug thaum kawg ntawm qhov program.
Koj tshaj tawm cov kev hloov pauv hauv awk li cas?
Standard AWK variables
- ARGC. Nws implies tus naj npawb ntawm cov lus sib cav muab rau ntawm kab hais kom ua. …
- ARGV. Nws yog ib qho array uas khaws cov kab lus hais kom ua. …
- CONVFMT. Nws sawv cev rau cov hom ntawv hloov dua siab tshiab rau cov lej. …
- ENVIRON. Nws yog ib tug associative array ntawm ib puag ncig variables. …
- FILENAME. …
- FS. …
- NF. …
- NR.
Kuv yuav hloov pauv tus nqi kab ke hauv awk Unix li cas?
Ntaus cov lus txib nram qab no awk:
- awk '{ gsub(“,”,””,$3); print $3 }' /tmp/data.txt.
- awk 'BEGIN{ sum=0} { gsub(“,”,””,$3); sum += $3 } END{ printf “%.2fn”, sum}' /tmp/data.txt.
- awk '{ x=gensub(“,”,””,”G”,$3); printf x “+” } END{ print “0” }' /tmp/data.txt | bc -l.
Lub ntsiab lus ntawm Linux yog dab tsi?
txhais tau tias yog cov ntaub ntawv tam sim no, / txhais tau tias ib yam dab tsi hauv phau ntawv ntawd, thiab foo yog lub npe ntawm cov ntaub ntawv koj xav khiav.
Koj ua ntaub ntawv li cas hauv Linux?
Yuav Ua Li Cas Tsim Cov Ntaub Ntawv hauv Linux Siv Terminal / Command Line
- Tsim cov ntaub ntawv nrog Kov Hais kom ua.
- Tsim ib cov ntaub ntawv tshiab nrog tus neeg khiav dej num Redirect.
- Tsim Cov Ntaub Ntawv nrog Cat Command.
- Tsim cov ntaub ntawv nrog ncha hais kom ua.
- Tsim cov ntaub ntawv nrog printf Command.
Kuv yuav ntxiv ib kab hauv awk li cas?
Tus -F ',' qhia awk tias lub teb cais rau cov tswv yim yog comma. Cov {sum +=$4;} ntxiv tus nqi ntawm 4 kem mus rau tag nrho cov khiav. Qhov kawg {print sum;} qhia awk los luam cov ntsiab lus ntawm cov lej tom qab nyeem tag nrho cov kab.
Kuv yuav ua ke ob csv cov ntaub ntawv hauv Linux li cas?
Piv txwv 1: Ntxiv ntau cov ntaub ntawv CSV hauv bash nrog (tawm) header
- tail -n+1 -q *.csv >> merged.out.
- -n 1 file1.csv > merged.out && tail -n+2 -q *.csv >> merged.out.
- 1 1.csv > ua ke.out in *.csv; ua tail -n 2 “$f”; printf "n"; ua>>combined.out.
- rau f hauv *.csv; ua tail -n 2 “$f”; printf "n"; ua >> merged.out.
Paste hais kom ua hauv Linux yog dab tsi?
Paste hais kom ua yog ib qho ntawm cov lus txib muaj txiaj ntsig hauv Unix lossis Linux operating system. Nws yog siv los koom cov ntaub ntawv kab rov tav (parallel merging) los ntawm cov kab tawm muaj cov kab los ntawm txhua cov ntaub ntawv teev tseg, sib cais los ntawm tab raws li tus delimiter, mus rau tus qauv tso zis.