Umyalelo we-grep ukhangela kwifayile, ujonge iimatshisi kwipateni ekhankanyiweyo. Ukuyisebenzisa chwetheza grep , emva koko iphethini esiyikhangelayo kwaye ekugqibeleni igama lefayile (okanye iifayile) esizingelayo. Imveliso yilayini ezintathu kwifayile equlathe oonobumba 'hayi'.
How do I grep a specific string in Linux?
Ukukhangela iipateni nge-grep
- Ukukhangela umtya othile kwifayile, sebenzisa umyalelo we-grep. …
- I-grep inobuntununtunu; oko kukuthi, kufuneka utshatise ipateni ngokubhekisele konobumba abakhulu nabancinci:
- Qaphela ukuba i-grep ayiphumelelanga kumzamo wokuqala kuba akukho namnye kumangeno aqale ngonobumba omncinci a.
Ndiwukhangela njani umtya kwiLinux?
Grep sisixhobo selayini yomyalelo ye Linux / Unix esetyenziselwa ukukhangela uluhlu lwamagama kwifayile ekhankanyiweyo. Ipatheni yophendlo lokubhaliweyo ibizwa ngokuba luphawu oluqhelekileyo. Xa ifumana umdlalo, iprinta umgca ngesiphumo. Umyalelo we-grep uluncedo xa ukhangela iifayile ezinkulu zelog.
Ndiyisebenzisa njani i-grep ukufumana amagama?
Eyona miyalelo mibini ilula kukusebenzisa grep's -w ukhetho. Oku kuya kufumana kuphela imigca equlathe igama lakho ekujoliswe kulo njengegama elipheleleyo. Yenza umyalelo othi "grep -w hub" ngokuchasene nefayile yakho ekujoliswe kuyo kwaye uya kubona kuphela imigca equlethe igama elithi "hub" njengegama elipheleleyo.
Ndilikhangela njani igama elithile kwifayile eLinux?
Ulifumana njani igama eliKhethekileyo kwiFayile kwiLinux
- grep -Rw '/indlela/ukuya/ukukhangela/' -e 'ipatheni'
- grep –ngaphandle=*.csv -Rw '/indlela/yoku/kukhangela' -e 'ipatheni'
- grep -ngaphandle-dir={dir1,dir2,*_old} -Rw '/indlela/yokukhangela' -e 'ipatheni'
- fumana . – igama “*.php” -exec grep “ipattern” {} ;
Yintoni umyalelo we-PS EF kwiLinux?
Lo myalelo uthi esetyenziselwa ukufumana i-PID (I-ID yeNkqubo, inani elahlukileyo lenkqubo) yenkqubo. Inkqubo nganye iya kuba nenombolo eyodwa ebizwa ngokuba yi-PID yenkqubo.
Yintoni i-grep kumyalelo weLinux?
Usebenzisa umyalelo we-grep ngaphakathi kweLinux okanye inkqubo esekwe kwi-Unix ukuya yenza uphendlo lokubhaliweyo kwiikhrayitheriya ezichaziweyo zamagama okanye imitya. grep imele uphendlo lweHlabathi jikelele lweNgcaciso eQhelekileyo kwaye uyiprinte.
Ndisebenzisa njani ukufumana kwiLinux?
Umyalelo wokufumana ngu esetyenziselwa ukukhangela kwaye khangela uluhlu lweefayile kunye nabalawuli ngokusekelwe kwiimeko ozikhankanyayo kwiifayile ezihambelana neempikiswano. Fumana umyalelo unokusetyenziswa kwiimeko ezahlukeneyo njengokuba ungafumana iifayile ngeemvume, abasebenzisi, amaqela, iindidi zefayile, umhla, ubungakanani, kunye nezinye iindlela ezinokwenzeka.
Ndiwenza njani umtya kwifayile?
Le ilandelayo yimizekelo yendlela yokusebenzisa umyalelo we-grep:
- Ukukhangela kwifayile ebizwa pgm.s ipateni equlathe abanye abalinganiswa abathelekisekayo *, ^, ?, [, ], ...
- Ukubonisa yonke imigca kwifayile enegama elithi sort.c engahambelaniyo nepateni ethile, chwetheza oku kulandelayo: grep -v iqamza sort.c.
Ubabamba njani abalinganiswa abakhethekileyo?
Ukutshatisa umlinganiswa okhethekileyo kwi-grep -E, beka umva ( ) phambi komlinganiswa. Ngokuqhelekileyo kulula ukusebenzisa i-grep –F xa ungadingi ipatheni eyodwa ehambelanayo.
Sithini isiphumo somyalelo kabani?
Ingcaciso: ngubani umyalelo ophumayo iinkcukacha zabasebenzisi abathe bangena ngoku kwisistim. Imveliso ibandakanya igama lomsebenzisi, igama letheminali (apho bangene kuyo), umhla kunye nexesha lokungena kwabo njl.njl.
Ndiyikhangela njani imixholo yefayile kwiLinux?
Ukusebenzisa i-grep Umyalelo wokufumana iiFayile ngomxholo kwi-Unix okanye kwi-Linux
- -i : Ungahoywa ngokwahlukileyo kwi-PATTERN (umdlalo osebenzayo, OVUMELEKILEYO, Uluhlu lwe-ValID) kunye neefayile zegalelo (ifayile yezibalo. c FILE. c FILE. C igama lefayile).
- -R (okanye -r ): Funda zonke iifayile phantsi kolawulo ngalunye, ngokuphindaphindiweyo.
Ndiwufumana njani umendo wefayile kwiLinux?
Ukufumana umendo opheleleyo wefayile, siya sebenzisa umyalelo wokufunda. readlink prints the absolute path of a symbolic link, but as a side-effect, it also prints the absolute path for a relative path.