Ukwazisa kophawu lwedola (okanye ukukhawuleza ophela ngophawu lwedola) kuthetha ukuba iUNIX ngoku ikulungele ukutolika kunye nokwenza imiyalelo yakho njengoko ichwetheziwe kwikhibhodi yakho.
Wenza ntoni i$? Ndithetha kwi Linux?
$? -Imo yokuphuma yomyalelo wokugqibela owenziweyo. … Kwiqokobhe lemibhalo eshicilelweyo, le yinkqubo ye-ID abasebenzela phantsi kwayo.
Wenza ntoni i$? Ndithetha kwi Unix?
$? = ibingumyalelo wokugqibela ube yimpumelelo. Impendulo ngu-0 othetha ukuthi 'ewe'.
Luthetha ntoni uphawu lwedola kwi-terminal?
Olo phawu lwedola luthetha ukuthi: sikwiqokobhe lenkqubo, oko kukuthi, inkqubo ofakwe kuyo nje ukuba uvule i-app yeSitena. Uphawu lwedola luhlala luphawu olusetyenziselwa ukubonisa apho ungaqala khona ukuchwetheza kwimiyalelo (kufuneka ubone ikhesa eqhwanyazayo apho).
Yintoni i-$? Kwi-Shell?
$? lutshintsho olukhethekileyo kwiqokobhe elifunda ubume bokuphuma bomyalelo wokugqibela owenziweyo. Emva kokuba umsebenzi ubuyile, $? inika imo yokuphuma yomyalelo wokugqibela owenziweyo kumsebenzi.
Kutheni iLinux isetyenziswa?
I-Linux kudala isisiseko sezixhobo zothungelwano lwentengiso, kodwa ngoku yeyona nto iphambili kwiziseko zophuhliso lweshishini. I-Linux yinkqubo esebenzayo kunye neyinyani, evulekileyo ekhutshwe ngo-1991 kwiikhomputha, kodwa ukusetyenziswa kwayo kuye kwanda ukuxhasa iinkqubo zeemoto, iifowuni, iiseva zewebhu kwaye, kutshanje, izixhobo zenethiwekhi.
Isebenza ntoni iLinux?
Isebenza njani iLinux? I-Linux yayiyilwe ukuba ifane ne-UNIX, kodwa iye yavela ukuze isebenze kwiintlobo ngeentlobo zehardware ukusuka kwiifowuni ukuya kwiikhompyuter ezinkulu. Yonke i-OS esekwe kwi-Linux ibandakanya i-Linux kernel-elawula izixhobo zehardware-kunye neseti yeepakethe zesoftware ezenza yonke inkqubo yokusebenza.
Kutheni sisebenzisa i-Unix?
Unix yinkqubo yokusebenza. Ixhasa i-multitasking kunye nokusebenza kwabasebenzisi abaninzi. I-Unix isetyenziswa kakhulu kuzo zonke iintlobo zeenkqubo zekhompuyutha ezifana nedesktop, ilaptop, kunye neeseva. Kwi-Unix, kukho ujongano lomsebenzisi weGraphical olufana neefestile ezixhasa ukukhangela okulula kunye nemeko yenkxaso.
Ithetha ntoni i-$@?
$@ iphantse yafana ne $* , zombini zithetha "zonke iimpikiswano zomgca womyalelo". Zihlala zisetyenziselwa ukudlulisa zonke iingxoxo kwenye inkqubo (ngaloo ndlela zenza isisongelo esirhangqe enye inkqubo).
Yintoni ebizwa ngesimboli kwi-Unix?
Ke, kwi-Unix, akukho ntsingiselo ikhethekileyo. Iinkwenkwezi yi "globbing" uphawu kumaqokobhe e-Unix kwaye likhadi lasendle lalo naliphi na inani labalinganiswa (kuquka u-zero). ? ngomnye umlinganiswa oqhelekileyo weglowusi, ongqamanisa ngqo omnye wawo nawuphi na umlinganiswa. *.
Yintoni uphawu lwedola kwi-bash?
Uphawu lwedola $ (Oluguquguqukayo)
Uphawu lwedola phambi kwento ekwi-parenthesis idla ngokubhekisa kuguquko. Oku kuthetha ukuba lo myalelo mhlawumbi ugqithisa impikiswano koguquko ukusuka kwiscript se-bash okanye ufumana ixabiso lwoguqulo lwento ethile.
Ndiyifumana njani idola ngokukhawuleza kwiLinux?
$ , # , % iisimboli zibonisa uhlobo lweakhawunti yomsebenzisi ongene kuyo.
- Uphawu lwedola ( $ ) luthetha ukuba ungumsebenzisi oqhelekileyo.
- hash ( # ) ithetha ukuba ungumlawuli wenkqubo (ingcambu).
- Kwiqokobhe elingu-C, i-prohit iphetha ngophawu lwepesenti ( %).
5 kwiintsuku. Ngo-2015
Yintoni umahluko phakathi kunye >> kwi Linux?
> isetyenziselwa ukubhala ngaphezulu ("clobber") ifayile kwaye >> isetyenziselwa ukufaka ifayile. Ke, xa usebenzisa ps aux > ifayile , imveliso ye ps aux iya kubhalwa kwifayile kwaye ukuba ifayile enegama lefayile ibisele ikhona, imixholo yayo iya kubhalwa ngaphezulu.
Yintoni $0 iqokobhe?
$0 Yandisa kwigama leqokobhe okanye iqokobhe leskripthi. Oku kusetwa kuqaliso lweqokobhe. Ukuba iBash icelwa ngefayile yemiyalelo (bona iCandelo 3.8 [Izikripthi zeShell], iphepha 39), i-$0 imiselwe kwigama laloo fayile.
Ndilazi njani iqokobhe lam langoku?
Indlela yokukhangela ukuba leliphi iqokobhe endilisebenzisayo: Sebenzisa le miyalelo ilandelayo yeLinux okanye yeUnix: ps -p $$ – Bonisa igama lakho langoku leqokobhe ngokuthembekileyo. echo "$SHELL" - Shicilela iqokobhe lomsebenzisi wangoku kodwa hayi iqokobhe elisebenzayo kwintshukumo.
Yintoni ukusetyenziswa kweqokobhe?
Iqokobhe yinkqubo enjongo yayo ingundoqo kukufunda imiyalelo kunye nokusebenzisa ezinye iinkqubo. Eyona nto iluncedo yeqokobhe luphawu oluphezulu lwentshukumo-kuku-keystroke, inkxaso yalo kwi-automating repetition tasks, kunye nomthamo walo wokufikelela koomatshini bothungelwano.