Indlela elula kakhulu yokubala inombolo yemigqa, amagama, nezinhlamvu kufayela lombhalo ukusebenzisa umyalo we-Linux "wc" kutheminali. Umyalo othi “wc” ngokuyisisekelo usho ukuthi “isibalo samagama” futhi ngamapharamitha azikhethela ahlukene umuntu angawusebenzisa ukubala inani lemigqa, amagama, nezinhlamvu efayeleni lombhalo.
Ulibala kanjani inani lamagama efayeleni le-Unix?
Umyalo we-wc (isibalo samagama). kumasistimu wokusebenza we-Unix/Linux isetshenziselwa ukuthola inombolo yokubala komugqa omusha, isibalo samagama, ibhayithi nokubalwa kwezinhlamvu kumafayela ashiwo ama-agumenti efayela. I-syntax yomyalo we-wc njengoba kukhonjisiwe ngezansi.
Ngibala kanjani inani lemigqa efayeleni ku-Linux?
Ungabala kanjani imigqa efayeleni ku-UNIX/Linux
- Umyalo othi “wc -l” uma usetshenziswa kuleli fayela, ukhipha isibalo somugqa kanye negama lefayela. $ wc -l file01.txt 5 file01.txt.
- Ukuze ukhiphe igama lefayela kumphumela, sebenzisa: $ wc -l < file01.txt 5.
- Ungakwazi njalo ukunikeza okukhipha umyalo kumyalo we-wc usebenzisa ipayipi. Ngokwesibonelo:
Yimuphi umyalo osetshenziselwa ukukhomba amafayela?
Umyalo 'wefayela' usetshenziselwa ukukhomba izinhlobo zefayela. Lo myalo uhlola impikiswano ngayinye futhi uyihlukanise. I-syntax ithi 'ifayela [option] File_name'.
Imuphi umyalo ozothola ifayela ngaphandle kokubonisa imilayezo enqatshelwe imvume?
Thola ifayela ngaphandle kokubonisa imilayezo ethi "Imvume Yenqatshiwe".
Uma i- find izama ukusesha uhla lwemibhalo noma ifayela ongenayo imvume yokufunda umlayezo othi “Imvume Yenqatshiwe” izokhishelwa esikrinini. I 2>/dev/null inketho ithumela le miyalezo ku-/dev/null ukuze amafayela atholakele abukwe kalula.
Wenzani umyalo we-cp ku-Linux?
Kusetshenziswa umyalo we-Linux cp yokukopisha amafayela nezinkomba kwenye indawo. Ukuze ukopishe ifayela, cacisa okuthi “cp” kulandelwe igama lefayela ozolikopisha.
Wenzani umyalo wokuthinta ku-Linux?
Umyalo wokuthinta umyalo ojwayelekile osetshenziswa kusistimu yokusebenza ye-UNIX/Linux okuyi esetshenziselwa ukudala, ukushintsha nokuguqula izitembu zesikhathi zefayela. Ngokuyisisekelo, kunemiyalo emibili ehlukene yokwakha ifayela ohlelweni lwe-Linux enjena: umyalo wekati: Isetshenziselwa ukwakha ifayela ngokuqukethwe.
Ngiwenza kanjani uhlu lwamafayela ku-Linux?
Indlela elula yokubhala amafayela ngamagama ukuvele uwafake ohlwini usebenzisa umyalo we-ls. Ukufakwa ohlwini kwamafayela ngamagama (ukuhleleka kwe-alphanumeric) kungukuzenzakalelayo. Ungakhetha okuthi ls (akunamininingwane) noma ls -l (imininingwane eminingi) ukuze unqume umbono wakho.
Uwabala kanjani amagama ku-bash?
Sebenzisa i-wc -w ukubala inani lamagama. Awudingi umyalo wangaphandle njenge-wc ngoba ungakwenza nge-bash ehlanzekile esebenza kahle kakhulu.