Njengoba sishilo ekuqaleni, kukhona futhi indlela yokwengeza amafayela ekupheleni kwefayela elikhona. Thayipha umyalo wekati ulandelwe yifayela noma amafayela ofuna ukuwangeza ekugcineni kwefayela elikhona. Bese, thayipha izimpawu ezimbili zokuqondisa kabusha okukhiphayo ( >> ) kulandelwe igama lefayela elikhona ofuna ukungeza kulo.
Uwuhlanganisa kanjani umbhalo efayeleni?
Use the >> operator to append text to a file.
Ngiwengeza kanjani umbhalo ekugcineni kwefayela ku-Linux?
Udinga ukusebenzisa okuthi >> ukwengeza umbhalo ekupheleni kwefayela. Kuyasiza futhi ukuqondisa kabusha nokwengeza/ukwengeza umugqa ekupheleni kwefayela ku-Linux noma kusistimu efana ne-Unix.
Ngifaka kanjani ifayela ku-bash?
Ku-Linux, ukuze ufake umbhalo efayeleni, sebenzisa i- >> ukuqondisa kabusha opharetha noma umyalo we-tee.
Yini oyisebenzisayo ukuze udlulisele amaphutha kufayela?
Izimpendulo ze-2
- Qondisa kabusha i-stdout kufayela elilodwa bese u-stderr uye kwelinye ifayela: umyalo> ukuphuma 2>iphutha.
- Qondisa kabusha i-stdout kufayela ( >out ), bese uqondisa kabusha i-stderr ku-stdout ( 2>&1 ): umyalo > ukuphuma 2>&1.
Ingabe ukwengeza kudala ifayela elisha?
Ungakwazi futhi ukwengeza/ukwengeza umbhalo omusha efayeleni eselivele likhona noma ifayela elisha. Nakulokhu futhi uma ukwazi ukubona uphawu lokuhlanganisa kukhodi, kubonisa ukuthi izodala ifayela elisha uma lingekho.
Ulifunda kanjani ifayela ku-Linux?
Nazi ezinye izindlela eziwusizo zokuvula ifayela kutheminali:
- Vula ifayela usebenzisa umyalo wekati.
- Vula ifayela usebenzisa umyalo omncane.
- Vula ifayela usebenzisa umyalo owengeziwe.
- Vula ifayela usebenzisa umyalo we-nl.
- Vula ifayela usebenzisa umyalo we-gnome-open.
- Vula ifayela usebenzisa umyalo wekhanda.
- Vula ifayela usebenzisa umyalo womsila.
Ngilihlela kanjani ifayela ku-Linux?
Hlela ifayela nge-vim:
- Vula ifayela ku-vim ngomyalo othi “vim”. …
- Thayipha okuthi “/” bese igama levelu ongathanda ukulihlela bese ucindezela u-Enter ukuze useshele inani efayeleni. …
- Thayipha okuthi “i” ukuze ufake imodi yokufaka.
- Lungisa inani ongathanda ukulishintsha usebenzisa okhiye bemicibisholo kukhibhodi yakho.
21 Mashi 2019 g.
Imuphi umyalo we-Unix ongahlanganisa ifayela elibizwa ngokuthi ukuhlola ekupheleni kwefayela elibizwa ngokuthi i-output?
Ungasebenzisa umyalo wekati ukwengeza idatha noma umbhalo efayeleni. Umyalo wekati ungaphinda ufake idatha kanambambili. Injongo eyinhloko yomyalo wekati iwukubonisa idatha kusikrini (stdout) noma ukuhlanganisa amafayela ngaphansi kwe-Linux noma i-Unix njengamasistimu okusebenza. Ukwengeza umugqa owodwa ungasebenzisa umyalo we-echo noma we-printf.
Ulengeza kanjani ukufaka ifayela1 kufayela eliyisibonelo le-tar?
Engeza amafayela kungobo yomlando
tar, ungasebenzisa inketho -r (noma -append) yomyalo we-tar ukwengeza/ukwengeza ifayela elisha ekugcineni kwengobo yomlando. Ungasebenzisa inketho ethi -v ukuze ube nokuphuma kwe-verbose ukuze uqinisekise ukusebenza. Enye inketho engasetshenziswa ngomyalo we-tar ithi -u (noma -update).
Liyini ifayela le-append?
Ukufaka Ifayela kubhekisela kwinqubo ehilela ukwengeza izici zedatha entsha kusizindalwazi esikhona. Isibonelo sesengezo sefayela elivamile (noma isithasiselo sedatha) kungaba ukuthuthukiswa kwamafayela ekhasimende enkampani.
Ngikuqondisa kanjani kabusha okukhiphayo okujwayelekile?
Iqondisa kabusha okukhiphayo
Ukusakaza kungaqondiswa kabusha kusetshenziswa i-n> opharetha, lapho u-n eyinombolo yesichazi sefayela. Uma u-n ekhishiwe, ishintsha ngokuzenzakalelayo ibe ngu-1, ukusakaza okukhiphayo okujwayelekile. Isibonelo, imiyalo emibili elandelayo iyafana; zombili zizoqondisa kabusha okukhiphayo komyalo ( stdout ) kufayela.
Ngikuqondisa kanjani kabusha konke okukhiphayo efayelini eliku-Linux?
Uhlu:
- umyalo > okukhiphayo.txt. Ukusakaza okujwayelekile okukhiphayo kuzoqondiswa kabusha kufayela kuphela, ngeke kubonakale kutheminali. …
- umyalo >> okukhiphayo.txt. …
- umyalo 2> okukhiphayo.txt. …
- umyalo 2 >> okukhiphayo.txt. …
- umyalo &> ukuphuma.txt. …
- umyalo &>> ukuphuma.txt. …
- umyalo | i-tee output.txt. …
- umyalo | tee -a okukhiphayo.txt.
Ungalubonisa kanjani uhlu lwawo wonke amafayela kuhlanganise namafayela afihliwe?
- I-Linux, ngokuzenzakalelayo, ifihla amafayela amaningi wesistimu ebucayi. …
- Ukuze ubonise wonke amafayela ohlwini lwemibhalo, kuhlanganise namafayela afihliwe, faka umyalo olandelayo: ls -a. …
- Ukuze umake ifayela njengelifihliwe, sebenzisa umyalo we-mv (hambisa). …
- Ungakwazi futhi ukumaka ifayela njengelifihliwe usebenzisa i-graphical interface.