Ukuze uthole izenzakalo eziyingqayizivele lapho imigqa ingasondelene ifayela lidinga ukuhlungwa ngaphambi kokuba lidlulele ku-uniq . i-uniq izosebenza njengoba kulindelekile kufayela elilandelayo eliqanjwe ababhali. txt . Njengoba izimpinda ziseduze i-uniq izobuyisela izehlakalo eziyingqayizivele futhi ithumele umphumela ekuphumeni okujwayelekile.
Ngiwathola kanjani amarekhodi ahlukile ku-Unix?
Manje ake sibone izindlela ezihlukene zokuthola irekhodi eliyimpinda.
- Kusetshenziswa ukuhlunga kanye ne-uniq: $ hlunga ifayela | uniq -d Linux. …
- awk indlela yokulanda imigqa eyimpinda: $ awk '{a[$0]++}END{for (i in a)uma (a[i]>1)phrinta i;}' ifayela le-Linux. …
- Ukusebenzisa i-perl way:…
- Enye indlela ehlukile:…
- Umbhalo wegobolondo wokulanda / ukuthola amarekhodi ayimpinda:
How do I get unique values from a column in Unix?
2 Okunye + Thumela i-Alt
- Bonisa amanani ayingqayizivele wekholomu. inombolo yekholomu ithi '6' cut -d',' -f6 file.csv | hlunga | ubunye. richie · 2013-04-10 14:05:32 1.
- Bonisa amanani ayingqayizivele wekholomu. 3 inombolo yekholomu. -3. sika -f 3 | ubunye. flxndn · 2012-06-06 10:48:41 2.
Ngiyithola kanjani imigqa eyingqayizivele efayeleni?
Thola imigqa eyingqayizivele
- Ifayela kufanele lihlungwe kuqala. hlunga ifayela | i-uniq -u izokhipha ukuze ikududuze. - ma77c. …
- Ngicabanga ukuthi isizathu sokuhlunga ifayela | i-uniq ibonisa wonke amanani isikhathi esingu-1 ingoba iphrinta ngokushesha umugqa ehlangana nawo okokuqala, futhi ekuhlanganeni okulandelayo, ivele yeqe. – Reeshabh Ranjan.
Ngisusa kanjani izimpinda ku-Unix?
Udinga ukusebenzisa amapayipi egobolondo kanye nezinsiza ezimbili ezilandelayo zomugqa womyalo we-Linux ukuze uhlele futhi ususe imigqa yombhalo eyimpinda:
- hlunga umyalo - Hlunga imigqa yamafayela ombhalo ku-Linux nezinhlelo ezifana ne-Unix.
- umyalo we-uniq - Bika noma ushiye imigqa ephindaphindiwe ku-Linux noma ku-Unix.
Uwathola kanjani amagama aphindaphindiwe ku-Linux?
incazelo
- Okokuqala ungafaka amathokheni amagama ngokuthi grep -wo , igama ngalinye liphrintwa emugqeni owodwa.
- Bese ungakwazi ukuhlunga amagama amathokheni ngokuhlunga .
- Ekugcineni ingathola amagama ahlukile alandelanayo noma ayimpinda nge- uniq . 3.1. uniq -c Lokhu kuphrinta amagama nokubala kwawo.
Ngikuthola kanjani okufakiwe okuhlukile ku-Linux?
Uniq Command kuLINUX ngezibonelo
- I-Syntax yoMyalo we-uniq:…
- Izinketho Zomyalo we-uniq:…
- Ukusebenzisa -c inketho : Itshela inombolo yezikhathi umugqa ophindwe kaningi. …
- Ukusebenzisa inketho -D : Iphinde iphrinte imigqa eyimpinda kuphela kodwa hhayi owodwa eqenjini ngalinye. …
- Ukusebenzisa -u inketho : Iphrinta kuphela imigqa eyingqayizivele.
Ngiphrinta kanjani ikholomu ku-Linux?
Kwenziwa kanjani…
- Ukuze uphrinte ikholomu yesihlanu, sebenzisa umyalo olandelayo: $ awk '{ phrinta $5 }' igama lefayela.
- Futhi singaphrinta amakholomu amaningi futhi sifake umucu wethu wangokwezifiso phakathi kwamakholomu. Isibonelo, ukuze uphrinte imvume negama lefayela lefayela ngalinye kuhla lwemibhalo lwamanje, sebenzisa isethi yemiyalo elandelayo:
Wenzani umyalo we-cd ku-Unix?
Umyalo wokushintsha umkhombandlela (cd) wakhelwe kugobolondo lesistimu futhi ishintsha uhla lwemibhalo olusebenzayo lwamanje. Umyalo we-cd ungasetshenziswa ukushintsha uhla lwemibhalo oluhlobene nendawo yohlu lwamanje olusebenzayo noma indawo ephelele ohlelweni lwefayela.
Yimuphi umyalo osetshenziselwa ukukhomba amafayela?
Umyalo 'wefayela' usetshenziselwa ukukhomba izinhlobo zefayela. Lo myalo uhlola impikiswano ngayinye futhi uyihlukanise. I-syntax ithi 'ifayela [option] File_name'.
Ngiyihlela kanjani imigqa ehlukile ku-Linux?
Izinsiza ze-Linux zokuhlunga kanye ne-uniq ziwusizo eku-odeni nasekuguquleni idatha kumafayela ombhalo nanjengengxenye yombhalo wegobolondo. Umyalo wokuhlunga uthatha uhlu lwezinto futhi uzihlele ngokulandelana kwama-alfabhethi nangezinombolo. Umyalo we-uniq uthatha uhlu lwezinto bese ususa imigqa eyimpinda eseduze.
Uyini umphumela womyalo kabani?
Incazelo: ubani owayala ukuphuma imininingwane yabasebenzisi okwamanje abangene ngemvume ohlelweni. Okukhiphayo kuhlanganisa igama lomsebenzisi, igama letheminali (angena kulo), usuku kanye nesikhathi sokungena kwabo njll. 11.
Which command is used to remove duplicate records?
Umyalo we-uniq isetshenziselwa ukususa imigqa eyimpinda efayeleni lombhalo ku-Linux. Ngokuzenzakalelayo, lo myalo ulahla konke ngaphandle kowokuqala wemigqa ephindaphindiwe eseduze, ukuze kungabikho imigqa yokuphumayo ephindaphindiwe. Ngokukhetha, ingaphrinta imigqa eyimpinda kuphela.