Yankho Lofulumira: Kodi maulalo ndi maulalo ophiphiritsa mu fayilo ya Unix ndi chiyani?

Ulalo ndi pulogalamu yothandiza mu UNIX yomwe imakhazikitsa ulalo wolimba kuchokera pa bukhu lina kupita ku bukhu lina. Ulalo wolimba ndikulozera ku chikwatu kapena fayilo pa media media. Ulalo wophiphiritsa ndi mtundu wa fayilo. Lili ndi zolozera ku chikwatu china cha mafayilo mumtheradi kapena njira yachibale.

Ulalo wophiphiritsa, womwe umatchedwanso ulalo wofewa, ndi mtundu wapadera wa fayilo womwe umaloza ku fayilo ina, monga njira yachidule mu Windows kapena Macintosh alias. Mosiyana ndi ulalo wolimba, ulalo wophiphiritsa ulibe zomwe zili mufayilo yomwe mukufuna.

A symbolic link is a special type of file whose contents are a string that is the pathname of another file, the file to which the link refers. (The contents of a symbolic link can be read using readlink(2).) In other words, a symbolic link is a pointer to another name, and not to an underlying object.

Symbolic links are used all the time to link libraries and make sure files are in consistent places without moving or copying the original. Links are often used to “store” multiple copies of the same file in different places but still reference to one file.

A symbolic link is a file-system object that points to another file system object. The object being pointed to is called the target. Symbolic links are transparent to users; the links appear as normal files or directories, and can be acted upon by the user or application in exactly the same manner.

Kuti muwone maulalo ophiphiritsa mu chikwatu:

  1. Tsegulani terminal ndikusunthira ku chikwatu chimenecho.
  2. Lembani lamulo: ls -la. Izi zidzalemba mndandanda wa mafayilo onse mu bukhuli ngakhale atabisika.
  3. Mafayilo omwe amayamba ndi l ndi mafayilo anu olumikizirana ophiphiritsa.

chikwatu cha pulogalamu mu woyang'anira mafayilo, chidzawoneka chili ndi mafayilo mkati /mnt/partition/. pulogalamu. Kuphatikiza pa "malumikizidwe ophiphiritsira", omwe amadziwikanso kuti "zolumikizira zofewa", mutha kupanga "zolumikizana zolimba". Ulalo wophiphiritsa kapena wofewa umaloza njira mu fayilo.

Chifukwa chake makonda olumikizirana movutikira ndi saloledwa ndi luso pang'ono. Kwenikweni, amaphwanya dongosolo la fayilo. Simuyenera kugwiritsa ntchito maulalo olimba mulimonse. Maulalo ophiphiritsa amalola magwiridwe antchito omwewo popanda kuyambitsa mavuto (mwachitsanzo ln -s target link ).

Kuti muchotse ulalo wophiphiritsa, gwiritsani ntchito rm kapena unlink lamulo lotsatiridwa ndi dzina la symlink ngati mkangano. Mukachotsa ulalo wophiphiritsa womwe umaloza ku chikwatu musaphatikizepo slash ku dzina la symlink.

Kuti muchite izi, mutha kupanga ulalo wophiphiritsa.

  1. Ulalo wophiphiritsa umawonekera ngati ulalo mkati mwa chikwatu. …
  2. Ikapangidwa, mutha kudina njira yofananira ya fayilo mu bukhuli kuti muyende mwachangu kupita kumalo atsopano.
  3. Ulalo wophiphiritsa watsopano udzawonekera m'ndandanda yomwe mudayiyika.

Maulalo ophiphiritsa ali kwenikweni njira zazifupi zomwe zimalozera ku fayilo m'malo mwa mtengo wake wa inode. Njirayi ingagwiritsidwe ntchito pamakalozera ndipo imatha kuwonetsa ma disks / ma voliyumu osiyanasiyana. … Ulalo uyenera kugwira ntchito ngakhale mutasintha fayilo yoyambirira ndi fayilo ina yokhala ndi dzina lomwelo.

Windows 7 and Vista support a maximum of 31 reparse points (and therefore symbolic links) for a given path (i.e. any given path can have at most 31 indirections before Windows gives up). Only users with the new Create Symbolic Link privilege, which only administrators have by default, can create symbolic links.

A hard link imagwira ntchito ngati kopi (yojambulidwa) ya fayilo yosankhidwa. Ngati fayilo yomwe idasankhidwa kale ichotsedwa, ulalo wolimba wa fayiloyo ukhalabe ndi data ya fayiloyo. … Ulalo Wofewa : Ulalo wofewa (womwe umatchedwanso Symbolic link) umakhala ngati cholozera kapena cholozera ku dzina la fayilo.

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