Split (Unix)

‹The template Manual is being considered for merging.› 

split
Original author(s)AT&T Bell Laboratories
Developer(s)Various open-source and commercial developers
Initial releaseFebruary 1973; 51 years ago (1973-02)
Written inC
Operating systemUnix, Unix-like, Plan 9, IBM i
PlatformCross-platform
TypeCommand
Licensecoreutils: GPLv3+
Plan 9: MIT License

split is a utility on Unix, Plan 9, and Unix-like operating systems most commonly used to split a computer file into two or more smaller files.

History

The split command first appeared in Version 3 Unix[1] and is part of the X/Open Portability Guide since issue 2 of 1987. It was inherited into the first version of POSIX.1 and the Single Unix Specification.[2] The version of split bundled in GNU coreutils was written by Torbjorn Granlund and Richard Stallman.[3] The split command has also been ported to the IBM i operating system.[4]

Usage

The command-syntax is: 

 split [OPTION] [INPUT [PREFIX]]

The default behavior of split is to generate output files of a fixed size, default 1000 lines. The files are named by appending aa, ab, ac, etc. to output filename. If output filename is not given, the default filename of x is used, for example, xaa, xab, etc. When a hyphen (-) is used instead of input filename, data is derived from standard input. The files are typically rejoined using a utility such as cat.

Additional program options permit a maximum character count (instead of a line count), a maximum line length, how many incrementing characters in generated filenames, and whether to use letters or digits.

Split file into pieces

Create a file named "myfile.txt" with exactly 3,000 lines of data: 

$ head -3000 < /dev/urandom > myfile.txt

Now, use the split command to break this file into pieces (note: unless otherwise specified, split will break the file into 1,000-line files): 

$ split myfile.txt
$ ls -l
-rw-r--r--  1 root root 761K Jun 16 18:17 myfile.txt
-rw-r--r--  1 root root 242K Jun 16 18:17 xaa
-rw-r--r--  1 root root 263K Jun 16 18:17 xab
-rw-r--r--  1 root root 256K Jun 16 18:17 xac
$ wc --lines xa*
  1000 xaa
  1000 xab
  1000 xac
  3000 total

As seen above, the split command has broken the original file (keeping the original intact) into three, equal in number of lines (i.e., 1,000), files: xaa, xab, and xac.

See also

References

  1. ^ split(1) – FreeBSD General Commands Manual
  2. ^ split – Shell and Utilities Reference, The Single UNIX Specification, Version 4 from The Open Group
  3. ^ "split(1): split file into pieces - Linux man page". linux.die.net.
  4. ^ IBM. "IBM System i Version 7.2 Programming Qshell" (PDF). IBM. Retrieved 2020-09-05.
The Wikibook Guide to Unix has a page on the topic of: Commands
Stub icon

This Unix-related article is a stub. You can help Wikipedia by expanding it.

Read other articles:

تاريخ إنجلترا الجديدة

هذه المقالة بحاجة لصندوق معلومات. فضلًا ساعد في تحسين هذه المقالة بإضافة صندوق معلومات مخصص إليها. غالبًا ما تم نسخ الكليات والكنائس من العمارة الأوروبية. كانت كلية بوسطن تسمى في الأصل أكسفورد في أمريكا المدن المدمجة في نيو إنجلاند كما ظهرت حوالي عام 1700 غالبًا ما تم نسخ الك...

 

قرية مكسيكو (نيويورك)

قرية مكسيكو   الإحداثيات 43°27′51″N 76°14′05″W / 43.4642°N 76.2347°W / 43.4642; -76.2347   [1] تقسيم إداري  البلد الولايات المتحدة[2]  التقسيم الأعلى مقاطعة أوسويغو  خصائص جغرافية  المساحة 5.554763 كيلومتر مربع5.554764 كيلومتر مربع (1 أبريل 2010)  ارتفاع 125 متر،  و128 �...

 

Liga Utama Inggris 2015–2016

Liga Utama InggrisMusim2015–2016JuaraLeicester CityDegradasiNewcastle UnitedNorwich CityAston VillaLiga Champions UEFALeicester CityArsenalTottenham HotspurManchester CityLiga Eropa UEFAManchester UnitedSouthamptonWest Ham UnitedJumlah pertandingan380Jumlah gol1.026 (2,7 per pertandingan)Pencetak golterbanyakHarry Kane (25 gol)[1]Penjaga gawangterbaikPetr Cech(16 pertandingan tanpa kebobolan)[2]Kemenangan kandangterbesarManchester City 6–1 Newcastle United(3 Oktober 2...

Daftar bank di India

Berikut ini adalah daftar Bank di India. Bank Sentral Reserve Bank of India State Bank of India dan rekan State Bank of Bikaner & Jaipur State Bank of Hyderabad State Bank of Indore (Sekarang tergabung dalam State Bank of India) State Bank of Mysore State Bank of Patiala State Bank of Saurashtra (Sekarang tergabung dalam State Bank of India) State Bank of Travancore Bank dinasionalisasi Allahabad Bank Andhra Bank Bank of Baroda Bank of India Bank of Maharashtra Canara Bank Central Bank of...

 

Science City Jena

Questa voce sull'argomento società di pallacanestro tedesche è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Science City JenaPallacanestro Segni distintivi Uniformi di gara Casa Trasferta Colori sociali Bianco e nero Dati societari Città Jena Nazione  Germania Confederazione FIBA Europe Federazione DBB Campionato ProA Fondazione 1994 Denominazione Science City Jena(1994-presente) Allenatore Marius Linartas Impianto Sparkassen-Arena Jena(3,000 ...

 

Carlo I di Savoia

Questa voce o sezione sull'argomento nobili italiani non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Carlo I di SavoiaCarlo I di Savoia in una miniatura delle Trés Riches Heures du Duc de BerryDuca di SavoiaStemma In carica22 settembre 1482 –13 marzo 1490 PredecessoreFiliberto I SuccessoreCarlo Giovanni Amedeo Marchese di SaluzzoIn carica1487...

Michael Lambert (volleyball)

American volleyball player Mike LambertPersonal informationFull nameMichael Allen LambertNationalityAmericanBorn (1974-04-14) April 14, 1974 (age 50)Honolulu, HawaiiHeight6 ft 5 in (196 cm)Weight205 lb (93 kg)Spike140 in (356 cm)Block127 in (323 cm)College / UniversityStanford UniversityVolleyball informationPositionOppositeNumber14 (1996)3 (2000)National team 1995–1996, 1998–2000 United States Michael Allen Lambert (born April 1...

 

Territorial Prelature of the Mission de France at Pontigny

Catholic ecclesiastical jurisdiction in France Territorial Prelature of Mission de FrancePraelatura Territorialis Missionis GalliaePrélature Territoriale de la Mission de FranceCathedral-Abbey of the Assumption in PontignyLocationCountry FranceEcclesiastical provinceDijonMetropolitanArchdiocese of DijonPopulation- Catholics(as of 2013)850InformationRiteLatin RiteEstablished15 August 1954CathedralCathédrale-abbatiale de Notre-Dame-de-l’AssomptionCurrent leadershipPrelateHervé Gi...

 

Ciarán Toner

Northern Irish professional footballer Ciarán Toner Toner playing for Harrogate Town in 2010Personal informationFull name Ciarán TonerDate of birth (1981-06-30) 30 June 1981 (age 42)Place of birth Craigavon, Northern IrelandHeight 6 ft 1 in (1.85 m)Position(s) MidfielderTeam informationCurrent team Doncaster Rovers Belles (manager)Youth career1998–2000 Tottenham HotspurSenior career*Years Team Apps (Gls)2000–2002 Tottenham Hotspur 0 (0)2001–2002 → Peterborough Un...

Place du Capitole (Rome)

Pour les articles homonymes, voir Place du Capitole. Place du Capitole Les photos de la place sur Commons Situation Coordonnées 41° 53′ 27″ nord, 12° 29′ 36″ est Pays Italie Région Latium Ville Rome Histoire Monuments Statue équestre de Marc AurèleMusées du Capitole Géolocalisation sur la carte : Italie modifier  La place du Capitole, en italien : Piazza del Campidoglio, est une place monumentale située au sommet de la colline du ...

 

Masseto

MassetoUna bottiglia di MassetoDettagliStato Italia RegioneToscana RiconoscimentoTipoIGT Vitigni con cui è consentito produrloMerlot Il Masseto è un vino vinificato in purezza, ottenuto da uve merlot. È considerato fra i migliori vini italiani[1][2], ed è uno dei più costosi sul mercato (il prezzo medio di una bottiglia supera i 700 euro)[1][3]. Deve il suo nome alla zona di produzione, ossia la collina Masseto sita nella frazione di Bolgheri, facente...

 

Tommaso Bisagno

Tommaso Bisagno Deputato della Repubblica ItalianaLegislaturaVIII, IX, X, XI GruppoparlamentareDemocratico Cristiano CollegioFirenze Sito istituzionale Dati generaliPartito politicoDemocrazia Cristiana Titolo di studiolaurea in chimica Professionedocente universitario Tommaso Bisagno (Signa, 5 aprile 1935 – Firenze, 18 gennaio 2014[1]) è stato un politico italiano. Indice 1 Biografia 1.1 Incarichi parlamentari 1.2 Sottosegretario di Stato 2 Note 3 Voci correlate 4 Al...

哥伦布 (密西西比州)

密西西比州 哥伦布城市綽號：Possum Town哥伦布位于密西西比州的位置坐标：33°30′06″N 88°24′54″W / 33.501666666667°N 88.415°W / 33.501666666667; -88.415国家 美國州密西西比州县朗兹县始建于1821年政府 • 市长罗伯特·史密斯 (民主党)面积 • 总计22.3 平方英里（57.8 平方公里） • 陸地21.4 平方英里（55.5 平方公里） • ...

 

一中同表

一中同表，是台灣处理海峡两岸关系问题的一种主張，認為中华人民共和国與中華民國皆是“整個中國”的一部份，二者因為兩岸現狀，在各自领域有完整的管辖权，互不隶属，同时主張，二者合作便可以搁置对“整个中國”的主权的争议，共同承認雙方皆是中國的一部份，在此基礎上走向終極統一。最早是在2004年由台灣大學政治学教授張亞中所提出，希望兩岸由一中各表�...

 

Marshall Islands–United States relations

Bilateral relationsMarshall Islands – United States relations Marshall Islands United States Marshall Islands–United States relations are bilateral relations between Marshall Islands and the United States. History Marshall Islands President Hilda Heine meets with US Secretary of State Mike Pompeo in 2019 During World War II, the United States took control of the islands from Japan (which governed them as part of the South Seas Mandate) in the 1944 Gilbert and Marshall Islands campaign. Th...

Line 1 (Pingshan SkyShuttle)

Tram Line in Shenzhen, China Line 1OverviewOwnerBYDLocaleShenzhen,ChinaTransit typeElevated TramNumber of lines1Line number1Number of stations11OperationBegan operationDecember 2022TechnicalSystem length8.51 kilometres (5.29 mi) Line 1 of the Pingshan Skyshuttle is an elevated tram line serving the area of Pingshan, Shenzhen. Line 1 opened in December 2022 [1] and runs from Pingshan Station to BYD North Station. Stations Serviceroutes Station name Connections Distancekm Location ...

 

Keuskupan Barahona

Keuskupan BarahonaDioecesis BarahonensisKatolik LokasiNegara Republik DominikaProvinsi gerejawiProvinsi Santo DomingoStatistikLuas2.892 km2 (1.117 sq mi)Populasi- Total- Katolik(per 2006)357.000191,000 (53.5%)Paroki20InformasiDenominasiKatolik RomaRitusRitus LatinPendirian24 April 1976 (48 tahun lalu)KatedralKatedral Bunda dari RosarioKepemimpinan kiniPausFransiskusUskupAndrés Napoleón Romero Cárdenas[1]EmeritusRafael Leónidas Felipe y Núñ...

 

Yehezkiel 5

Yehezkiel 5Kitab Yehezkiel 30:13–18 pada suatu naskah bahasa Inggris dari awal abad ke-13, MS. Bodl. Or. 62, fol. 59a. Teks bahasa Ibrani disalin sebagaimana dalam kodeks bahasa Latin. Terjemahan bahasa Latin ditulis di bagian marjin.KitabKitab YehezkielKategoriNevi'imBagian Alkitab KristenPerjanjian LamaUrutan dalamKitab Kristen26← pasal 4 pasal 6 → Yehezkiel 5 (disingkat Yeh 5) adalah bagian dari Kitab Yehezkiel dalam Alkitab Ibrani dan Perjanjian Lama di Alkitab Kristen. Beri...

Coppa dei Campioni 1979-1980

Disambiguazione – Se stai cercando altri significati, vedi Coppa dei Campioni 1979-1980 (disambigua). Coppa dei Campioni 1979-1980 Competizione Coppa dei Campioni Sport Calcio Edizione 25ª Organizzatore UEFA Date 29 agosto 1979 - 28 maggio 1980 Partecipanti 33 Nazioni 32 Sede finale Stadio Santiago Bernabéu(Madrid) Risultati Vincitore Nottingham Forest(2º titolo) Secondo Amburgo Semi-finalisti AjaxReal Madrid Statistiche Miglior marcatore Søren Lerby (10) Incontri disputati 6...

 

Sovaprevir

Chemical compound SovaprevirClinical dataOther namesACH-1625ATC codeNoneLegal statusLegal status Investigational Identifiers IUPAC name (4R)-N-{(1R,2S)-1-[(Cyclopropylsulfonyl)carbamoyl]-2-vinylcyclopropyl}-1-{(2S)-3,3-dimethyl-2-[2-oxo-2-(1-piperidinyl)ethyl]butanoyl}-4-[(7-methoxy-2-phenyl-4-quinolinyl)oxy]-L-prolinamide CAS Number1001667-23-7PubChem CID53362096ChemSpider28529313UNII2ND9V3MN6OKEGGD10166ChEMBLChEMBL2105750NIAID ChemDB491583CompTox Dashboard (EPA)DTXSID00142994 Chemical and p...