Umyalo we-grep usesha ifayela, ufuna okufanayo nephethini eshiwo. Ukuyisebenzisa thayipha grep , bese iphethini esiyicingayo futhi ekugcineni igama lefayela (noma amafayela) esisesha kulo. Okukhiphayo imigqa emithathu efayeleni equkethe izinhlamvu ezithi 'hhayi'.
Ngilifaka kanjani ifayela ku-Linux?
Ungawusebenzisa kanjani umyalo we-grep ku-Linux
- I-Grep Command Syntax: grep [izinketho] PATTERN [IFILE...] ...
- Izibonelo zokusebenzisa i-'grep'
- grep foo /file/name. …
- grep -i "foo" /file/name. …
- grep 'iphutha 123' /file/name. …
- grep -r “192.168.1.5” /etc/ …
- grep -w “foo” /file/name. …
- egrep -w 'word1|word2' /file/name.
Ungena kanjani ku-Unix?
Iphethini eliseshwayo efayelini ibizwa ngokuthi yinkulumo evamile (i-grep imele ukusesha emhlabeni jikelele kwenkulumo evamile nokuphrinta). Incazelo Yezinketho -c : Lokhu kuphrinta kuphela isibalo semigqa efana nephethini -h : Bonisa imigqa efanisiwe, kodwa ungawabonisi amagama wefayela.
Ngenza kanjani i-grep futhi ngilondoloze ifayela?
grep -n “test” * | grep -v “mytest” > i-output-file izofanisa yonke imigqa enochungechunge “test” ngaphandle kwemigqa ehambisana neyunithi yezinhlamvu ethi “mytest” (leyo switch -v ) – futhi izoqondisa kabusha umphumela efayeleni eliphumayo.
Ngiwenza kanjani amagama amabili ku-Linux?
Ngingenza kanjani amaphethini amaningi?
- Sebenzisa izingcaphuno ezilodwa kuphethini: grep 'pattern*' file1 file2.
- Sebenzisa okulandelayo izinkulumo ezivamile ezinwetshiwe: egrep 'pattern1|pattern2' *. py.
- Ekugcineni, zama kumagobolondo/ama-ose amadala e-Unix: grep -e pattern1 -e pattern2 *. pl.
- Enye inketho yokufaka izintambo ezimbili: grep 'word1|word2' input.
Ngiwuthola kanjani umyalo we-grep ku-Unix?
Ukuyisebenzisa thayipha grep , bese iphethini esiseshayo futhi ekugcineni igama lefayela (noma amafayela) esisesha kulo. Okukhiphayo yimigqa emithathu efayeleni equkethe izinhlamvu 'hhayi'. Ngokuzenzakalelayo, i-grep isesha iphethini ngendlela ezwelayo.
Uyini umyalo we-grep?
I-grep iyinsiza yomugqa womyalo esetshenziswayo ukucinga umbhalo ophuma ekufakweni okujwayelekile noma ifayela lezinkulumo ezithile, ibuyisela imigqa lapho okufanayo kwenzeka khona. Ukusetshenziswa okuvamile kwe-grep ukuthola nokuphrinta imigqa ethile kusuka kumafayela welogi noma ukuphuma kohlelo.
Ngisebenzisa kanjani ukuthola ku-Linux?
Umyalo wokuthola uthi esetshenziselwa ukusesha futhi uthole uhlu lwamafayela nezinkomba ngokusekelwe ezimeni ozicacisayo zamafayela afana nokuphikisana. Thola umyalo ungasetshenziswa ezimeni ezihlukahlukene njengokuthi ungathola amafayela ngezimvume, abasebenzisi, amaqembu, izinhlobo zamafayela, idethi, usayizi, nezinye izimo ezingaba khona.
Ingabe kufanele ngisebenzise i-grep noma i-Egrep?
I-grep ne-egrep yenza umsebenzi ofanayo, kodwa indlela abachaza ngayo iphethini iwukuphela komehluko. I-Grep imele “I-Global Regular Expressions Print”, yayinjengo-Egrep ye-“Extended Global Regular Expressions Print”. … Umyalo we-grep uzohlola ukuthi ingabe likhona yini ifayela eline-.
Ngilithola kanjani ifayela ngokuphindaphindiwe ku-Unix?
I-Linux: Ukusesha ifayela eliphindaphindayo `grep -r` (njenge-grep + thola)
- Isixazululo 1: Hlanganisa 'thola' kanye 'ne-grep' ...
- Isixazululo 2: 'grep -r' ...
- Okwengeziwe: Sesha ama-subdirectory amaningi. …
- Ukusebenzisa i-egrep ngokuphindaphindiwe. …
- Isifinyezo: amanothi e-`grep -r`.
Yini efakwayo ku-Unix?
obandayo yenza izinhlelo zamafayela, amafayela, izinkomba, amadivaysi namafayela akhethekile atholakale ukuze asetshenziswe futhi atholakale kumsebenzisi. Uzakwabo we-umount uyala isistimu yokusebenza ukuthi isistimu yefayela kufanele ihlukaniswe nendawo yayo yokukhuphuka, okulenze ingasafinyeleleki futhi ingase ikhishwe kukhompuyutha.
Ngikukopisha kanjani okuphumayo kwe-grep?
Izimpendulo ze-5
- grep -l inketho yokukhipha amagama wefayela kuphela.
- i-xargs ukuguqula uhlu lwefayela lusuke kokokufaka okujwayelekile lube izimpikiswano zomugqa womyalo.
- cp -t inketho yokucacisa umkhombandlela oqondiwe (futhi ugweme ukusebenzisa izimeli)
Ngiyisebenzisa kanjani i-grep ukusesha ifolda?
Ukuze u-grep Wonke Amafayela Kuhla Lwemibhalo Ngokuphindaphindiwe, sidinga ukusebenzisa -R inketho. Lapho -R izinketho zisetshenziswa, Umyalo we-Linux grep uzosesha intambo enikeziwe kumkhombandlela oshiwo kanye nemibhalo engezansi ngaphakathi kwalolo lwazi. Uma lingekho igama lefolda elinikeziwe, umyalo we-grep uzosesha intambo ngaphakathi kohla lwemibhalo olusebenzayo lwamanje.
Ulenza kanjani igama lefayela?
Isiphetho - Grep kusuka kumafayela futhi ubonise igama lefayela
grep -n 'string' igama lefayela : Phoqa i-grep ukwengeza isiqalo umugqa ngamunye wokuphumayo ngenombolo yomugqa ngaphakathi kwefayela layo lokufaka. grep -with-filename 'igama' ifayela NOMA grep -H 'ibha' file1 file2 file3 : Phrinta igama lefayela lomdlalo ngamunye.