Ngaso sonke isikhathi uyazibuza ukuthi yiluphi uphawu olulandelayo?
- ~
I-ebizwa ngokuthi i-tilde futhi ivela kwisiLatini se-titulus futhi ngokusho kwe-Wikipedia yafika olimini lwesiNgisi ngolimi lwesiSpanishi. Kusho isihloko noma umbhalo.
Ngaphakathi kwe-Linux isignali (~) uphawu olwaziwa ngokuthi i-metacharacter futhi ngaphakathi kwengubo yegobolondo lokugcina inencazelo ekhethekile.
Ngakho-ke umyalo olandelayo uyenzani ngempela:
cd ~
Umyalo ongenhla usubuyisela emuva ekuqondeni kwakho ekhaya. Kuyinto isinqamuleli esikhulu. Uma uye endleleni eya kwenye ifolda efana ne / var / logs noma / mnt njll bese uthayipha cd ~ kubuyisela emuva kumhlahlandlela wasekhaya wakho.
I-tilde (~) yenza okungaphezulu kwalokho.
Nakuba ukusebenzisa i-tilde ngokwakho kuthatha wena kumhlahlandlela wakho womsebenzisi wamanje ungathuthela komunye umhlahlandlela wasekhaya womsebenzisi ngokuthayipha igama lomsebenzisi ngemuva kwe-tilde.
Isibonelo, uma unomsebenzisi ogama linguFred ohlelweni lwakho bese ungathuthela kufolda yakhe yasekhaya ngokuthayipha okulandelayo:
cd ~ fred
Enye ukusetshenziswa kwe-tilde ukubuyela emuva kusiqondisi sangaphambilini sokusebenza. Cabanga ukuthi usanda kungena kufolda ekhaya likaFred kusuka kufolda / var / logs. Ungabuyela kufolda / var / logs ngokuthayipha okulandelayo:
cd ~ -
Okuphambene ne ~ ~ kuyinto ~ + okuyinto uma isetshenziswe ngomyalo we-cd ikuyisa kumhlahlandlela wamanje osebenzayo.
Lokhu, akunjalo, akusizi ngokukhethekile ngoba usuvele usencwadini yangokusebenza yamanje.
Ukuthayipha cd ~ ekugcineni futhi ucindezela ukhiye wethebhu inikeza uhlu lwawo wonke amafolda angabonakala ongaya kuwo.
Isibonelo salokhu singabonakala esithombeni ngenhla.
Ukuhambisa kufolda yezintambo uthayipha okulandelayo:
cd ~ imidlalo
Lokhu kukuthatha kufolda / usr / imidlalo.
Qaphela ukuthi akuzona zonke izinketho ezisetshenziselwe ukusebenza nomyalo we-cd.
Ukusetshenziswa kokubili kokugcina kwe-tilde kungokulandelayo:
cd ~ 0
cd ~ 1
cd ~ -1
Le notation ikuvumela ukuba udlule phakathi kwe-directory stack. Amafolda angangeniswa emgqeni wokuqondisa usebenzisa i- pushd .
Isibonelo, uma usefolda lomculo wakho futhi ufuna ukuthi kuvele kuhlobo lokugcina lwemibhalo okulandelayo:
pushd / ikhaya / igama lomsebenzisi / Umculo
Manje thayipha ama- dirs alandelayo ayala :
ama-dirs -v
Lokhu kubonisa uhlu lwazo zonke izinto emgqeni.
Cabanga ngesiteji esimweni saso somzimba. Cabanga ukuthi une-stack yomagazini. Ukuze ufike kumagazini wesibili phansi udinga ukususa eyodwa kusuka phezulu ukuze ufike kuyo.
Cabanga ukuthi unayo ipaki kanje:
0. Umculo
1. Ukulandwa
2. Izikripthi
Ukusebenzisa igama cd ~ 2 likuyisa kufolda endaweni yesibili emgqeni. Qaphela ukuthi isikhundla sokuqala ngaso sonke isikhathi siyisikhombi samanje ukuze esikhathini esizayo uthayiphe ama- dirs -v uzobona okulandelayo:
0. Izikripthi
1. Ukulandwa
2. Izikripthi
Uma uphinde ubuye kufolda yoMculo, isikhundla esingu-0 sizophinde sibe umculo.
Umyalo we-cd akuwona umyalo owodwa osebenza ne-tilde (~). Umyalo we- ls usebenza futhi.
Isibonelo ukuhlela wonke amafayela kwifolda yakho yasekhaya uthayipha okulandelayo:
ls ~
I-tilde iphinde isetshenziswe kumafayela wefayili futhi ngokuvamile idalwa njenge-backup ngabahleli bombhalo.
I-tilde ingenye yama-metacharacter amaningi asetshenzisiwe ku-Linux. Amanye ama-metacharacters afaka ukuma okuphelele noma isikhathi (.) Esetshenziselwa ukukhomba isikhundla samanje uma sisetshenziselwa ukuhamba ngesistimu yefayili, i-asterisk (*) isetshenziselwa njengobunjwa be-wildcard ekusesheni njengoba kuyimpawu yombuzo (?).
Uphawu lwe-carat (^) lisetshenziselwa ukukhombisa ukuqala komugqa noma uchungechunge futhi uphawu lwama dollar lisetshenziselwa ukukhomba ukuphela kwechungechunge noma umugqa ngenkathi kusesha.