Lub npe
uniq (tshem cov kab kev duplicate los ntawm ib daim ntawv qhia txog kev tsis sib haum)
Synopsis
[- # hla-chars] [- caws pauv] [-tsis hla-chars] [-yog kos-chars] [- # hla-chais] [+ # hla-chars] [--count] [-repeated] [- qhov chaw] [- qiv-chaw = hla teb-chaw] [-skip-chars = hla-chars] [- heck-hars = kos-chars] [--help] [--version] [infile ] [outfile]
Kev piav qhia
uniq luam tawm cov cim kab hauv cov ntaub ntawv sorted, tsuas yog ib qho ntawm txoj kab ntawm txoj kab. Optionally, nws tuaj yeem pom cov kab uas tshwm sim ib zaug, lossis cov kab uas tshwm sim ntau dua ib zaug. uniq yuav tsum tau cov npe tawm tswv yim vim nws sib piv tau cov kab sib law liag xwb.
Xaiv
-u, - nws txawv
Tsuas yog sau cov cim kab.
-d, -repeated
Tsuas sau cov kab ntawv sib npaug.
-c, --count
Sau cov sij hawm ntawm txhua kab ntawv tshwm sim nrog rau kab.
-number, -f, --skip-fields = tus naj npawb
Hauv qhov no, tus zauv yog ib qho integer uas muaj pes tsawg tus teb rau hla ua ntej kev kuaj xyuas txog qhov kev tsis sib haum. Thawj cov lej teb, nrog rau cov khoom ua si uas tau pom ua ntej muaj pes tsawg tus liaj teb, raug muab hla dhau thiab tsis suav. Cov teb yog txhais tau tias yog ib txoj hlua ntawm cov chaw tsis-kos, cov cim tsis tab, uas sib cais los ntawm qhov chaw thiab cov tabs.
+ naj npawb, -siv, -skip-chars = naj npawb
Hauv qhov no, tus zauv yog ib qho integer uas sawv cev tus naj npawb ntawm cov cim los hla ua ntej kev kuaj xyuas txog kev ua tsis ncaj. Thawj tus lej cim, nrog rau cov ntaub ntawv uas tau pom ua ntej muaj pes tsawg tus neeg cim, raug hla dhau thiab tsis suav. Yog tias koj siv ob qho tib si lub teb thiab cov kev xaiv ua cim xaiv, cov liaj teb raug hla thawj zaug.
-w, --check-chars = tooj
Qhia cov cim ntawm cov cim los sib piv hauv cov kab, tom qab tawm tej qhov teev thiab cov cim. Feem ntau tag nrho cov kev sib txuas ntawm cov kab no raug muab coj los sib piv.
- pabcuam
Sau cov ntawv xov xwm tawm thiab tawm nrog kev cai lij choj uas qhia tau zoo.
--version
Sau cov lus qhia txog cov zis tso tawm ces tawm tau.
Piv txwv
% sort myfile | uniq
tshem tawm cov kab sib txawv ntawm cov kwj deg (lub cim "|" kav cov zis ntawm qhov kev ua kom me me mus rau qhov kev ua haujlwm uniq).
Tseem ceeb: Siv tus txiv neej hais kom ua ( % tus txiv neej ) seb qhov kev hais kom raug siv hauv koj lub computer.