Igobolondo le-Unix lisetshenziselwa ukusebenzisa imiyalo, futhi livumela abasebenzisi ukuthi badlulise izimpikiswano zesikhathi sokusebenza kule miyalo. Lawa ma-agumenti, aziwa nangokuthi amapharamitha womugqa womyalo, avumela abasebenzisi ukuthi balawule ukuhamba komyalo noma bacacise idatha yokufaka yomyalo.
Yiziphi izimpikiswano zomugqa womyalo ngesibonelo?
Ake sibone isibonelo sezimpikiswano zomugqa womyalo lapho sidlula khona ingxabano eyodwa ngegama lefayela.
- #hlanganisa
- i-void main(int argc, char *argv[]) {
- printf(“Igama lohlelo lithi: %sn”, argv[0]);
- uma(argc <2){
- printf(“Akukho ukungqubuzana okudlule kulayini womyalo.n”);
- }
- okunye {
- printf(“Impikiswano yokuqala ithi: %sn”, argv[1]);
Yiziphi izimpikiswano zomugqa womyalo kusikripthi segobolondo?
Izimpikiswano zomugqa womyalo zaziwa nangokuthi imingcele yendawo. Lawa ma-agumenti aqondile ngombhalo wegobolondo kutheminali phakathi nesikhathi sokusebenza. Okuguquguqukayo ngakunye okudluliselwe kusikripthi segobolondo kumugqa womyalo kugcinwa eziguquguqukayo zegobolondo ezihambisanayo kufaka phakathi igama leskripthi segobolondo.
Uyidlula kanjani ingxabano yomugqa womyalo ku-Unix?
Ingxabano yokuqala ingakhunjuzwa ngu $1 , owesibili ngo-$2, njalo njalo. Okuguquguqukayo okuchazwe ngaphambilini “$0” kubhekisele kusikripthi se-bash ngokwaso.
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Uzidlulisa Kanjani Izimpikiswano Eziningi kusikripthi seShell
- $@ : Amanani awo wonke ama-agumenti.
- $# :Isamba senani lezimpikiswano.
- $$ : I-ID yokucubungula yegobolondo lamanje.
Ngiwusebenzisa kanjani umyalo we-Xargs?
Izibonelo eziyi-10 ze-Xargs Command ku-Linux / UNIX
- Isibonelo Esiyisisekelo se-Xargs. …
- Cacisa i-Delimiter Ukusebenzisa -d inketho. …
- Nciphisa Okukhiphayo Ngomugqa Ngokusebenzisa Inketho -n. …
- Yazisa Umsebenzisi Ngaphambi Kokwenza usebenzisa -p inketho. …
- Gwema Okuzenzakalelayo /bin/echo Kokufaka Okungenalutho Ukusebenzisa -r Option. …
- Phrinta umyalo kanye ne-Output Using -t Option. …
- Hlanganisa i-Xargs ne-Find Command.
Ithini ingxabano yokuqala yomugqa womyalo?
Ipharamitha yokuqala kuya kokuyinhloko, argc, isibalo senani lama-agumenti omugqa womyalo. Empeleni, ingaphezu kwenani lama-agumenti, ngoba impikiswano yokuqala yomugqa womyalo ithi igama lohlelo ngokwalo! Ngamanye amazwi, esibonelweni se-gcc esingenhla, impikiswano yokuqala ithi “gcc”.
Iyini ukusetshenziswa komugqa womyalo?
Umugqa womyalo uthi isixhumi esibonakalayo sombhalo sekhompyutha yakho. Iwuhlelo oluthatha imiyalo, oluyidlulisela ohlelweni lokusebenza lwekhompyutha ukuze lusebenze. Kusukela kulayini womyalo, ungazulazula kumafayela namafolda ekhompyutheni yakho, njengoba ubungenza nge-Windows Explorer ku-Windows noma i-Finder ku-Mac OS.
Yini esemgqeni womyalo?
Ibizwa kahle ngokuthi i-command line interface (noma i-CLI), umugqa womyalo, noma umyalo womyalo. … Eqinisweni, umugqa womyalo uthi isixhumi esibonakalayo esekwe embhalweni lapho umuntu angakwazi khona ukuzulazula, adale, akhiphe, futhi enze okuthile kumafayela ekhompuyutha nezinkomba ngokunemba.
Iyini i-$1 script Linux?
$ 1 kuyinto impikiswano yokuqala yomugqa womyalo idluliselwe kumbhalo wegobolondo. … $0 igama lombhalo ngokwawo (script.sh) $1 iyimpikiswano yokuqala (igama lefayela1) $2 impikiswano yesibili (dir1)
Iyini i-$$ ku-Unix?
$$ ngu i-ID yenqubo (PID) yombhalo ngokwawo. I-$BASHPID i-ID yenqubo yesehlakalo samanje se-Bash. Lokhu akufani nokuguquguquka kwe-$$, kodwa ngokuvamile kunikeza umphumela ofanayo. https://unix.stackexchange.com/questions/291570/what-is-in-bash/291577#291577. Kopisha isixhumanisi CC BY-SA 3.0.