Txhawm rau nrhiav qhov xwm txheej tshwj xeeb uas cov kab tsis nyob ib sab yuav tsum tau txheeb xyuas ua ntej dhau mus rau uniq . uniq yuav ua haujlwm raws li qhov xav tau ntawm cov ntaub ntawv hauv qab no uas muaj npe sau npe. txt . Raws li cov duplicates nyob ib sab uniq yuav rov qab qhov tshwm sim tshwj xeeb thiab xa cov txiaj ntsig mus rau cov qauv tsim tawm.
Kuv yuav nrhiav tau cov ntaub ntawv tshwj xeeb hauv Unix li cas?
Cia peb tam sim no pom ntau txoj hauv kev los nrhiav cov ntaub ntawv duplicate.
- Siv txheeb thiab uniq: $ txheeb cov ntaub ntawv | uniq -d Linux. …
- awk txoj kev nqa cov kab duplicate: $ awk '{a[$0]++}END{for (i in a)if (a[i]>1)print i;}' file Linux. …
- Siv perl txoj kev:…
- Lwm txoj hauv kev perl:…
- Ib daim ntawv plhaub los nqa / nrhiav cov ntaub ntawv duplicate:
How do I get unique values from a column in Unix?
2 Alternatives + Xa Alt
- Tso cov nqi tshwj xeeb ntawm ib kab. kab zauv yog '6' txiav -d',' -f6 file.csv | tsi | ib uniq. kev · 2013-04-10 14:05:32 1.
- Tso cov nqi tshwj xeeb ntawm ib kab. 3 yog tus naj npawb ntawm kab. -3. txiav -f 3 | ib uniq. flxndn · 2012-06-06 10:48:41 2.
Kuv yuav ua li cas thiaj tau cov kab tshwj xeeb hauv cov ntaub ntawv?
Nrhiav cov kab tshwj xeeb
- Cov ntaub ntawv yuav tsum tau txheeb ua ntej. hom ntaub ntawv | uniq -u yuav tso zis rau console rau koj. — mav 77c. …
- Kuv xav tias yog vim li cas txheeb cov ntaub ntawv | uniq qhia tag nrho cov txiaj ntsig 1 lub sijhawm yog vim nws tam sim luam tawm kab nws ntsib thawj zaug, thiab rau qhov kev sib ntsib tom ntej, nws tsuas yog hla lawv. - Reeshabh Ranjan.
Kuv yuav tshem cov duplicates hauv Unix li cas?
Koj yuav tsum siv lub plhaub kav nrog rau ob qho hauv qab no Linux hais kom ua kab hluav taws xob los txheeb xyuas thiab tshem tawm cov kab ntawv sib tshooj:
- sort command - Xaiv cov kab ntawm cov ntawv nyeem hauv Linux thiab Unix-zoo li tshuab.
- uniq hais kom ua - Rport lossis tshem tawm cov kab rov ua dua ntawm Linux lossis Unix.
Koj pom cov lus rov qab li cas hauv Linux?
Piav qhia
- Ua ntej koj tuaj yeem tokenize cov lus nrog grep -wo, txhua lo lus raug luam tawm ntawm ib kab lus.
- Tom qab ntawd koj tuaj yeem txheeb cov lus tokenized nrog txheeb.
- Thaum kawg tuaj yeem nrhiav cov lus sib law liag lossis sib npaug nrog uniq . 3.1. uniq -c Qhov no sau cov lus thiab lawv suav.
How do I get unique entries in Linux?
uniq Command hauv LINUX nrog piv txwv
- Syntax ntawm uniq Command:…
- Kev xaiv rau uniq hais kom ua:…
- Siv -c kev xaiv : Nws qhia cov sij hawm ib kab rov ua dua. …
- Siv -D kev xaiv : Nws kuj luam tawm tsuas yog cov kab sib npaug tab sis tsis yog ib pab pawg. …
- Siv -u kev xaiv : Nws luam tawm cov kab tshwj xeeb xwb.
Kuv yuav luam ib kab hauv Linux li cas?
Yuav ua li cas…
- Txhawm rau luam tawm kab thib tsib, siv cov lus txib hauv qab no: $ awk '{ print $5 }' filename.
- Peb tseem tuaj yeem luam tawm ntau kab thiab ntxig peb txoj hlua kev cai rau ntawm txhua kab. Piv txwv li, txhawm rau luam cov ntawv tso cai thiab npe ntawm txhua cov ntaub ntawv hauv cov npe tam sim no, siv cov lus txib hauv qab no:
cd hais kom ua dab tsi hauv Unix?
The change directory (cd) command is built into the system shell and changes the current working directory. The cd command can be used to either change to a directory that is relative to the the location of the current working directory or to an absolute location in the filesystem.
Cov lus txib twg yog siv los txheeb xyuas cov ntaub ntawv?
Cov lus txib 'file' yog siv los txheeb xyuas hom ntaub ntawv. Cov lus txib no sim txhua qhov kev sib cav thiab faib nws. Lub syntax yog 'file [xaiv] File_name'.
Kuv yuav txheeb cov kab tshwj xeeb hauv Linux li cas?
Linux cov khoom siv txheeb thiab uniq muaj txiaj ntsig zoo rau kev xaj thiab tswj cov ntaub ntawv hauv cov ntawv nyeem thiab ua ib feem ntawm lub plhaub ntawv. Qhov kev hais kom ua yuav siv cov npe ntawm cov khoom thiab txheeb lawv cov tsiaj ntawv thiab lej. Cov lus txib uniq siv cov npe ntawm cov khoom thiab tshem tawm cov kab uas nyob ib sab.
Cov zis ntawm leej twg hais kom ua yog dab tsi?
Piav: leej twg hais kom tso zis cov ntsiab lus ntawm cov neeg siv uas tam sim no nkag rau hauv lub system. Cov zis muaj xws li username, davhlau ya nyob twg lub npe (nyob rau hauv uas lawv nkag rau hauv), hnub tim thiab lub sij hawm ntawm lawv tus ID nkag mus thiab lwm yam. 11.
Which command is used to remove duplicate records?
uniq command yog siv los tshem tawm cov kab sib npaug ntawm cov ntawv nyeem hauv Linux. Los ntawm lub neej ntawd, cov lus txib no muab pov tseg tag nrho tab sis thawj zaug ntawm cov kab rov qab uas nyob ib sab, kom tsis muaj cov kab tso tawm rov qab. Optionally, nws tuaj yeem hloov pauv tsuas yog luam cov kab duplicate.