Kafushane cindezela ukhiye we-Esc bese ucindezela u-Shift + G ukuhambisa ikhesa ekupheleni kwefayela ku-vi noma umhleli wombhalo we-vim ngaphansi kwe-Linux kanye nezinhlelo ezifana ne-Unix.
Ngikubuka kanjani ukuphela kwefayela ku-Linux?
Umyalo womsila iyinsizakalo ye-Linux esetshenziselwa ukubuka ukuphela kwamafayela ombhalo. Ungasebenzisa futhi imodi yokulandela ukuze ubone imigqa emisha njengoba yengezwa kufayela ngesikhathi sangempela. umsila ufana nensizakalo yekhanda, esetshenziselwa ukubuka ukuqala kwamafayela.
Usithola kanjani isiphetho sefayela?
Ungakwenza noma sebenzisa into ye-ifstream ethi 'fin' ebuyisela u-0 ekugcineni kwefayela noma ungasebenzisa i-eof() okuwumsebenzi welungu wekilasi le-ios. Ibuyisela inani elingelona uziro ekufinyeleleni ekugcineni kwefayela.
Uya kanjani kulayini wokugcina ku-vi?
Uma usuvele uku-vi, ungasebenzisa umyalo we-goto. Ukuze wenze lokhu, cindezela u-Esc , thayipha inombolo yomugqa, bese ucindezela u-Shift-g . Uma ucindezela u-Esc bese u-Shift-g ngaphandle kokucacisa inombolo yomugqa, kuzokuyisa kulayini wokugcina efayelini.
Imuphi ukhiye ukuphela kwefayela ku-Linux?
inhlanganisela yokhiye "yokuphela kwefayela" (EOF) ingasetshenziswa ukuze uphume ngokushesha kunoma iyiphi itheminali. I-CTRL-D iphinde isetshenziswe ezinhlelweni ezinjengokuthi “at” ukukhombisa ukuthi usuqedile ukuthayipha imiyalo yakho (umyalo we-EOF).
Ngiwubuka kanjani umyalo ku-Linux?
kusetshenziswa umyalo wokubuka ku-Linux ukwenza uhlelo ngezikhathi ezithile, ebonisa okukhiphayo kusikrini esigcwele. Lo myalo uzosebenzisa umyalo oshiwo ku-agumenti ngokuphindaphindiwe ngokubonisa okukhiphayo namaphutha. Ngokuzenzakalelayo, umyalo oshiwo uzosebenza njalo kumasekhondi angu-2 futhi iwashi lizosebenza lize liphazamiseke.
Ngiyibona kanjani imigqa yokugcina eyi-10 ku-Linux?
ikhanda -15 /etc/passwd
Ukuze ubheke imigqa embalwa yokugcina yefayela, sebenzisa umyalo womsila. umsila usebenza ngendlela efanayo neyekhanda: thayipha umsila kanye negama lefayela ukuze ubone imigqa yokugcina eyi-10 yalelo fayela, noma thayipha igama lefayela elithi tail -number ukuze ubone imigqa yenombolo yokugcina yefayela.
Ingabe isetshenziselwa ukuthola isiphetho sefayela?
Impendulo: ifa () I-function feof() isetshenziselwa ukuhlola ukuphela kwefayela ngemva kwe-EOF.
Ngisihambisa kanjani isikhombisi sefayela ekuqaleni kwefayela?
ukusetha kabusha i-pointer ekuqaleni kwefayela. Awukwazi ukwenza lokho ku-stdin. Uma udinga ukwazi ukusetha kabusha i-pointer, dlulisela ifayela njengengxabano kuhlelo futhi usebenzise i-fopen ukuvula ifayela futhi ufunde elikuqukethe.
Ingabe isetshenziselwa ukuthola ukuphela kwefayela?
ifa () I-function feof() isetshenziselwa ukuhlola ukuphela kwefayela ngemva kwe-EOF. Ihlola ukuphela kwenkomba yefayela. Ibuyisela inani elingelona uziro uma iphumelele ngenye indlela, uziro.
Yiziphi izindlela ezimbili ze-vi?
Izindlela ezimbili zokusebenza ku-vi ziyi imodi yokungena kanye nemodi yomyalo.
Ngigxumela kanjani ekugcineni kwefayela ku-vi?
Kafushane cindezela ukhiye we-Esc bese ucindezela u-Shift + G ukuhambisa ikhesa ekupheleni kwefayela ku-vi noma umhleli wombhalo we-vim ngaphansi kwe-Linux nezinhlelo ezifana ne-Unix.
Uya kanjani ekupheleni komugqa?
Ukusebenzisa ikhibhodi ukuhambisa ikhesa bese uskrola idokhumenti
- Ikhaya - hambisa ekuqaleni komugqa.
- Qeda - hambisa ekugcineni komugqa.
- Ctrl+Inkinobho yomcibisholo Wesokudla - hambisa igama elilodwa kwesokudla.
- U-Ctrl+Ukhiye womcibisholo Wesokunxele - hambisa igama elilodwa kwesokunxele.
- Ctrl+Ukhiye womcibisholo Ophezulu - hambisa ekuqaleni kwendima yamanje.
Ufaka kanjani ifayela ku-Linux?
Ulenza Kanjani Ifayela ku-Linux Usebenzisa Itheminali/Ulayini Wokuyalela
- Dala Ifayela ngeTouch Command.
- Dala Ifayela Elisha Nge-opharetha Eqondise Kabusha.
- Dala Ifayela nge-Cat Command.
- Dala Ifayela nge-echo Command.
- Dala Ifayela nge-printf Command.
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.
Yini i-bin sh Linux?
/bin/sh ngu okusebenzisekayo okumelela igobolondo lesistimu futhi ngokuvamile isetshenziswa njengesixhumanisi esingokomfanekiso esikhomba kokusebenzisekayo kunoma yiliphi igobolondo eliyigobolondo lesistimu. Igobolondo lesistimu ngokuyisisekelo igobolondo elizenzakalelayo okufanele iskripthi silisebenzise.