If only the setuid bit is set (and the user doesn’t have execute permissions himself) it shows up as a capital “S”. … The general rule is this: If it’s lowercase, that user HAS execute. If it’s uppercase, the user DOESN’Thave execute. ]
I-chmod yenza ntoni?
Ukusebenzisa i-chmod +s kuluhlu, itshintsha umsebenzisi/iqela njengoko "uphumeza" ulawulo. Oku kuthetha ukuba, nanini na ifayile entsha okanye i-subdir yenziwe, iya "kulidla ilifa" ubunini beqela lolawulo lomzali ukuba "setGID" bit iseti.
Yintoni i-S kwimveliso ye-LS?
KwiLinux, jonga amaxwebhu oLwazi ( info ls ) okanye kwi-intanethi. Ileta ichaza oko i-setuid (okanye i-setgid, ngokuxhomekeke kumhlathi) isuntswana iseti. Xa okuphunyeziweyo kusetuid, kuqhuba njengomsebenzisi ongumnikazi wefayile ephunyezwayo endaweni yomsebenzisi ocele inkqubo. Unobumba u-s uthatha indawo kanobumba u-x.
Ndiyinika njani imvume kwi-S kwiLinux?
Onobumba abancinane 's' ebesimfuna ngu-'S' omkhulu ngoku. Oku kuthetha ukuba i-setuid IS icwangcisiwe, kodwa umsebenzisi ongumnini wefayile akanazimvume zokuphumeza. Singongeza ukuba imvume usebenzisa umyalelo 'chmod u+x'.
Ndizicwangcisa njani iimvume kwi-S Unix?
Useta kwaye uyisuse njani i-setuid kunye ne-setgid:
- Ukongeza i-setuid yongeza i-bit +s yomsebenzisi: chmod u+s /path/to/file. …
- Ukususa isuntswana le-setuid sebenzisa i- -s ingxabano ngomyalelo we-chmod: chmod us /path/to/file. …
- Ukuseta bitgid kwifayile, yongeza ingxabano yeqela, nge-chmod g+s /path/to/file:
What does %s do in Linux?
-s makes bash read commands (ikhowudi ye-"install.sh" njengoko ikhutshelwe ngu "curl") ukusuka kwi-stdin, kwaye wamkele iiparamitha zendawo nangona kunjalo. -Ivumela i-bash iphathe yonke into elandelayo njengeparamitha yendawo endaweni yokhetho.
Ithetha ukuthini i-chmod 744?
744, nto leyo imvume eqhelekileyo engagqibekanga, ivumela ukufunda, ukubhala, kunye nokwenza iimvume zomnini, kwaye ufunde iimvume zeqela kunye nabasebenzisi "behlabathi".
Ngaba i-chmod 755 ikhuselekile?
Ifolda yokulayisha ifayile ecaleni, eyona ikhuselekileyo ichmod 644 kuzo zonke iifayile, 755 abalawuli.
Yintoni i-RW RW R -?
-rw-r–r– (644) — Ngumsebenzisi kuphela oneemvume zokufunda nokubhala; iqela nabanye banokufunda kuphela. -rwx—— (700) — Ngumsebenzisi kuphela ofunde, wabhala kwaye waphumeza iimvume. -rwxr-xr-x (755) — Umsebenzisi ufunde, ubhale kwaye enze iimvumelwano; iqela kunye nabanye banokufunda kwaye baphumeze kuphela.