Ukuze ubheke imigqa embalwa yokugcina yefayela, sebenzisa umyalo womsila. umsila usebenza ngendlela efanayo neyekhanda: thayipha umsila kanye negama lefayela ukuze ubone imigqa yokugcina eyi-10 yalelo fayela, noma thayipha igama lefayela elithi tail -number ukuze ubone imigqa yenombolo yokugcina yefayela.
Ngiyibona kanjani imigqa yokugcina eyi-10 yefayela ku-Linux?
I-syntax yomyalo we-Linux tail
Umsila umyalo ophrinta inombolo yokugcina embalwa yemigqa (imigqa eyi-10 ngokuzenzakalelayo) yefayela elithile, bese uyanqamula. Isibonelo sokuqala: Ngokuzenzakalelayo “umsila” uphrinta imigqa yokugcina eyi-1 yefayela, bese uyaphuma. njengoba ubona, lokhu kuphrinta imigqa engu-10 yokugcina / var / log / imilayezo.
Ngiwucinga kanjani umugqa ngefayela ku-Linux?
Bhala i-bash script ukuze uphrinte umugqa othile efayeleni
- awk : $>awk '{if(NR==LINE_NUMBER) phrinta $0}' file.txt.
- sed : $>sed -n LINE_NUMBERp file.txt.
- ikhanda : $>head -n LINE_NUMBER file.txt | umsila -n + LINE_NUMBER Nansi i-LINE_NUMBER, iyiphi inombolo yomugqa ofuna ukuyiphrinta. Izibonelo: Phrinta umugqa kusuka efayeleni elilodwa.
Ngiwenza kanjani uhlu lwamafayela ayi-10 okuqala ku-Linux?
The Umyalo we-ls ngisho unezinketho zalokho. Ukufaka ohlwini amafayela emigqeni embalwa ngangokunokwenzeka, ungasebenzisa -format=comma ukuze uhlukanise amagama amafayela ngokhefana njengakulo myalo: $ ls -format=comma 1, 10, 11, 12, 124, 13, 14, 15, 16pgs-indawo.
Ngiyiqondisa kanjani kabusha inombolo yemigqa ku-Unix?
Ungasebenzisa ifulegi -l ukubala imigqa. Qalisa uhlelo ngokujwayelekile futhi usebenzise ipayipi ukuze uqondise kabusha ku-wc. Kungenjalo, ungakwazi ukuqondisa kabusha okukhiphayo kohlelo lwakho kufayela, ithi calc. out , bese ugijima i-wc kulelo fayela.
Ulikhombisa 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:
Ngibala kanjani inani lemigqa efayeleni ku-Linux?
Indlela elula kakhulu yokubala inani lemigqa, amagama, nezinhlamvu kufayela lombhalo ukusebenzisa umyalo we-Linux "wc" ku-terminal. Umyalo othi “wc” ngokuyisisekelo usho ukuthi “isibalo samagama” futhi ngamapharamitha azikhethela ahlukene umuntu angawusebenzisa ukubala inani lemigqa, amagama, nezinhlamvu efayeleni lombhalo.
Ngiwenza kanjani umugqa kusuka kufayela?
Umyalo we-grep usesha ifayela, ufuna okufanayo nephethini eshiwo. Ukuyisebenzisa thayipha grep , bese kuba iphethini esiseshayo kanye ekugcineni igama lefayela (noma amafayela) esicinga kuwo. Okukhiphayo yimigqa emithathu efayeleni equkethe izinhlamvu ezithi 'hhayi'.
Uyini umyalo wokubonisa imigqa yokuqala yefayela eyi-10 ku-Linux?
Umyalo wekhanda, njengoba igama lisho, phrinta inombolo ephezulu engu-N yedatha yokokufaka okunikeziwe. Ngokuzenzakalelayo, iphrinta imigqa yokuqala eyi-10 yamafayela ashiwo. Uma kunikezwe igama lefayela elingaphezu kwelilodwa khona-ke idatha evela kufayela ngalinye yandulelwa igama lefayela layo.
Ngiwathola kanjani amafayela aphezulu ayi-10 ku-Linux?
Imiyalo Yokuthola Amafayela Akulu Kakhulu E-Linux
- I-oda -h inketho: ukubonisa amafayela wefomethi kufomethi efundwa ngabantu, kuma-Kilobytes, Megabytes namaGigabytes.
- ye-oda -s inketho: Bonisa inani lempikiswano ngayinye.
- du umyalo -x inketho: Yeqa izinkomba. …
- Hlunga umyalo -okhetho: Shintsha umphumela wokufanisa.
Uyini umyalo wokubuka ifayela ku-Unix?
I-Linux kanye ne-Unix Command Ukubuka Ifayela
- umyalo wekati.
- umyalo omncane.
- umyalo owengeziwe.
- umyalo we-gnome-open noma umyalo we-xdg-open (inguqulo evamile) noma umyalo we-kde-open (inguqulo ye-kde) - umyalo wedeskithophu ye-Linux gnome/kde ukuze uvule noma yiliphi ifayela.
- vula umyalo - umyalo othize we-OS X wokuvula noma yiliphi ifayela.