Taelo ea grep e ka batla khoele ka lihlopha tsa lifaele. Ha e fumana paterone e lumellanang le faele e fetang e le 'ngoe, e hatisa lebitso la faele, e lateloe ke colon, ebe mola o ts'oanang le paterone.
Nka fumana mohlala oa faele joang?
Taelo ea grep e batla ka har'a faele, e batla e ts'oanang le paterone e boletsoeng. Ho e sebelisa thaepa grep , ebe mokhoa oo re o batlang 'me qetellong lebitso la faele (kapa lifaele) tseo re ntseng re li batla. Sephetho ke mela e meraro faeleng e nang le litlhaku 'che'.
Ke bapisa mohlala joang ho Linux?
Lipateroneng tsa taelo ea nyeoe.
...
Matching Paterone Ka Bash.
| paterone | Tlhaloso |
|---|---|
| ?(mehlala) | Bapisa zero kapa liketsahalo tse le 'ngoe tsa lipaterone (extglob) |
| *(mehlala) | Bapisa makhetlo a zero kapa ho feta a lipaterone (extglob) |
| + (mehlala) | Bapisa ketsahalo e le 'ngoe kapa ho feta tsa lipaterone (extglob) |
| @(mehlala) | Bapisa ketsahalo e le 'ngoe ea lipaterone (extglob) |
U bapisa mohlala joang ho Unix?
Taelo ea grep e ts'ehetsa likhetho tse 'maloa bakeng sa taolo e eketsehileng mabapi le ho bapisa:
- -i: e etsa patlisiso e sa tsotelleng.
- -n: e bonts'a mela e nang le mohlala hammoho le linomoro tsa line.
- -v: e bonts'a mela e se nang mohlala o boletsoeng.
- -c: e bonts'a palo ea lipaterone tse nyallanang.
Ke hlophisa faele joang ho Linux?
Mokhoa oa ho sebelisa taelo ea grep ho Linux
- Grep Command Syntax: grep [likgetho] PATTERN [FILE…] ...
- Mehlala ea ho sebelisa 'grep'
- grep foo /file/name. …
- grep -i "foo" /file/name. …
- grep 'error 123' /file/name. …
- grep -r "192.168.1.5" /etc/ …
- grep -w "foo" /file/name. …
- egrep -w 'word1|word2' /file/name.
Ke taelo efe e sebelisoang ho hlahisa litaba tsa faele?
U ka boela ua sebelisa taelo ea katse ho hlahisa litaba tsa faele e le 'ngoe kapa tse ngata skrineng sa hau. Ho kopanya taelo ea katse le taelo ea pg ho u lumella ho bala litaba tsa faele skrineng se le seng ka nako. Hape o ka bonts'a litaba tsa lifaele ka ho sebelisa mokhoa oa ho kenya le oa tlhahiso.
Ke sebelisa grep joang ho batla foldara?
Ho grep Lifaele Tsohle ho Directory Recursively, re hloka ho e sebelisa -R kgetho. Ha -R likhetho li sebelisoa, The Linux grep command e tla batla khoele e fanoeng bukeng e boletsoeng le li-subdirectories ka har'a bukana eo. Haeba ho se na lebitso la foldara le fanoeng, taelo ea grep e tla batla khoele ka har'a bukana e sebetsang ea hajoale.
Paterone ke eng ho Linux?
Mohlala oa khetla ke khoele e ka bang le litlhaku tse latelang tse khethehileng, tse tsejoang ka hore ke wildcards kapa metcharacters. U tlameha ho qotsa lipaterone tse nang le li-metacharacts ho thibela khetla hore e se ke ea atolosoa ka boyona. Mantsoe a mabeli le a le mong a sebetsa ka bobeli; ho joalo le ka ho phonyoha ka ho koekoetla morao.
Ke bapisa khoele joang ho bash?
Ha u bapisa likhoele ho Bash u ka sebelisa li-operators tse latelang: khoele1 = khoele2 le khoele1 == khoele2 - Opereishene ea tekano e khutlisa 'nete haeba li-operands li lekana. Sebelisa = opareitara ka teko [taelo. Sebelisa == opareitara e nang le [[ taelo ea ho bapisa mohlala.
Ke eng e hlalosang mokhoa oa ho tsamaisana le mohlala?
Ho bapisa mohlala ke mokhoa oa ho hlahloba hore na ho na le tatellano e itseng ea litlhaku / li-tokens / data e teng har'a data e fanoeng. … E boetse e sebelisoa ho fumana le ho fetola mokhoa o ts'oanang mongolong kapa khoutu ka mongolo o mong/khoutu. Sesebelisoa leha e le sefe se tšehetsang ts'ebetso ea ho batla se sebelisa mokhoa oa ho bapisa mokhoa ka tsela e 'ngoe.
Mefuta e 'meli ea likhetla ke efe?
Shell e ka ba le mefuta e 'meli ea mefuta e fapaneng:
- Liphetoho tsa tikoloho - Liphetoho tse romelloang kantle ho lits'ebetso tsohle tse hlahisitsoeng ke khetla. Litlhophiso tsa bona li ka bonoa ka taelo ea env. …
- Lintho tse fapaneng tsa Shell (sebakeng) - Liphetoho tse amang khetla ea hona joale feela.
Ke etsa grep file joang?
Ho batla lifaele tse ngata ka ho grep taelo, kenya mabitso a lifaele ao u batlang ho a batla, a arotsoe ka litlhaku tsa sebaka. Terminal e hatisa lebitso la faele e 'ngoe le e 'ngoe e nang le mela e bapisang, le mela ea 'nete e kenyelletsang letoto le hlokahalang la litlhaku. U ka eketsa mabitso a lifaele tse ngata kamoo ho hlokahalang.
Ke taelo efe e sebelisoang ho bapisa lifaele tse peli?
tshebediso taelo e fapaneng ho bapisa lifaele tsa mongolo. E ka bapisa lifaele tse le 'ngoe kapa likahare tsa li-directory. Ha diff command e tsamaisoa ho lifaele tse tloaelehileng, 'me ha e bapisa lifaele tsa mongolo ka har'a li-directory tse fapaneng, taelo ea diff e bolela hore na ke mela efe e lokelang ho fetoloa lifaeleng hore li tsamaisane.
Ke fumana faele joang moleng oa taelo oa Linux?
Mehlala ea Motheo
- fumana . – bolela thisfile.txt. Haeba o hloka ho tseba ho fumana faele ho Linux e bitsoang thisfile. …
- fumana /home -name *.jpg. Batla tsohle. jpg lifaele ho /home le li-directory tse ka tlase ho eona.
- fumana . – mofuta oa f -e se nang letho. Batla faele e se nang letho ka har'a bukana ea hajoale.
- fumana /home -user randomperson-mtime 6 -iname “.db”
Ke kopitsa faele joang ho Linux?
The Linux cp taelo e sebelisetsoa ho kopitsa lifaele le li-directory sebakeng se seng. Ho kopitsa faele, hlakisa "cp" e lateloang ke lebitso la faele eo u lokelang ho e kopitsa. Ebe, bolela sebaka seo faele e ncha e lokelang ho hlaha ho sona. Ha ho hlokahale hore faele e ncha e be le lebitso le tšoanang le leo u le kopitsang.
U etsa faele joang ho Linux?
Mokhoa oa ho theha faele ea mongolo ho Linux:
- U sebelisa touch ho etsa faele ea mongolo: $ touch NewFile.txt.
- Ho sebelisa katse ho etsa faele e ncha: $ cat NewFile.txt. …
- Ho sebelisa feela > ho etsa faele ea mongolo: $ > NewFile.txt.
- Qetellong, re ka sebelisa lebitso la mohlophisi oa mongolo ebe re theha faele, joalo ka: