Uma ungena ohlelweni lwe-UNIX, isixhumi esibonakalayo esiyinhloko ohlelweni sibizwa nge-UNIX SHELL. Lolu uhlelo olukwethula uphawu lwedola ($) ngokushesha. Lokhu kwaziswa kusho ukuthi igobolondo selikulungele ukwamukela imiyalo yakho ethayiphiwe. … Bonke basebenzisa uphawu lwedola njengomyalezo wabo.
Yenzani i-$? Kusho ukuthini ku-Linux?
$? -Isimo sokuphuma somyalo wokugcina owenziwe. … Ngemibhalo yegobolondo, lena i-ID yenqubo abasebenzisa ngaphansi kwayo.
Yini i-$? Ku-Shell?
$? iwukuguquguquka okukhethekile kugobolondo okufunda isimo sokuphuma somyalo wokugcina okhishiwe. Ngemva kokubuya komsebenzi, $? inikeza isimo sokuphuma somyalo wokugcina owenziwe kumsebenzi.
Yenzani i-$? Kusho ukuthini ku-Unix?
$? = umyalo wokugcina ube yimpumelelo. Impendulo ithi 0 okusho ukuthi 'yebo'.
Iyini idola kusikripthi segobolondo?
Lesi silawuli se-opharetha sisetshenziselwa ukuhlola isimo sokugcina komyalo okhishiwe. Uma isimo sibonisa u-'0' umyalo wenziwe ngempumelelo futhi uma ukhombisa u-'1' kusho ukuthi umyalo bekuwukwehluleka. Ikhodi yokuphuma yomyalo wangaphambilini igcinwe kuguquguquko lwegobolondo $?.
Kungani kusetshenziswa i-Linux?
I-Linux kade yaba yisisekelo semishini yokuxhumana kwezohwebo, kodwa manje isiyisisekelo sengqalasizinda yebhizinisi. I-Linux iwuhlelo lokusebenza oluzanyiwe noluyiqiniso, oluvula umthombo ovulekile olwakhululwa ngo-1991 lwamakhompiyutha, kodwa ukusetshenziswa kwalo kuye kwanda ukuze kusekelwe izinhlelo zezimoto, amafoni, amaseva ewebhu futhi, kamuva nje, amagiya okuxhumana.
Liyini igobolondo le-$0?
$0 Inweba egameni legobolondo noma iskripthi segobolondo. Lokhu kusethwe ekuqalisweni kwegobolondo. Uma i-Bash icelwa ngefayela lemiyalo (bona Isigaba 3.8 [Izikripthi Zeshell], ikhasi 39), i-$0 isethwe egameni lalelo fayela.
Ngilazi kanjani igobolondo lami lamanje?
Indlela yokuhlola ukuthi yiliphi igobolondo engilisebenzisayo: Sebenzisa imiyalo elandelayo ye-Linux noma ye-Unix: ps -p $$ - Bonisa igama lakho legobolondo lamanje ngokuthembekile. echo "$SHELL" - Phrinta igobolondo lomsebenzisi wamanje kodwa hhayi ngempela igobolondo elisebenza ekuhambeni.
Isebenza kanjani iShell kuLinux?
Igobolondo ohlelweni lokusebenza lwe-Linux lithatha okokufaka kuwe ngendlela yemiyalo, liyicubungule, bese linikeza okukhiphayo. Kuyisixhumi esibonakalayo lapho umsebenzisi asebenza khona ezinhlelweni, imiyalo, nemibhalo. Igobolondo lifinyelelwa yitheminali elisebenzisayo.
Yini igobolondo ku-Ubuntu?
Igobolondo wuhlelo olunikeza isikhombimsebenzisi esivamile, sombhalo kuphela sezinhlelo zokusebenza ezifana ne-Unix.
Kungani sisebenzisa i-Unix?
I-Unix iyisistimu yokusebenza. Isekela imisebenzi eminingi kanye nokusebenza kwabasebenzisi abaningi. I-Unix isetshenziswa kakhulu kuzo zonke izinhlobo zezinhlelo zekhompuyutha ezifana nedeskithophu, ilaptop, namaseva. Ku-Unix, kune-Graphical interface yomsebenzisi efana namawindi asekela ukuzulazula okulula nendawo esekelayo.
Lubizwa ngani uphawu ku-Unix?
Ngakho, ku-Unix, ayikho incazelo ekhethekile. Inkanyezi iwuhlamvu "olwesabekayo" kumagobolondo e-Unix futhi iyi-wildcard yanoma iyiphi inombolo yezinhlamvu (okuhlanganisa uziro). ? omunye uhlamvu oluvamile lwe-globbing, olufana ncamashi noyedwa wanoma yimuphi umlingisi. *.
Isho ukuthini i-$@?
$@ icishe ifane nethi $* , kokubili okusho ukuthi "zonke izimpikiswano zomugqa womyalo". Avame ukusetshenziselwa ukuvele adlulisele zonke izingxabano kolunye uhlelo (ngaleyo ndlela kwakheka isisonga kulolo olunye uhlelo).
Ngabe i-$3 izosho ukuthini kusikripthi segobolondo?
Incazelo: Inqubo yengane iyinqubo engaphansi eyethulwe enye inqubo, umzali wayo. Imingcele yesikhundla. Izimpikiswano zidluliselwe kuskripthi kusukela kumugqa womyalo [1] : $0, $1, $2, $3 . . . $0 igama lombhalo ngokwawo, $1 ingxabano yokuqala, $2 eyesibili, $3 eyesithathu, njalonjalo.
Yikuphi kokulandelayo okungelona igobolondo?
Yikuphi kokulandelayo okungelona uhlobo lwegobolondo? Incazelo: Igobolondo le-Perl alilona uhlobo lwegobolondo ku-unix. 2.