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Manajemen FILE

December 22, 2011 by

Manajemen File di Windows

Dalam sistem operasi windows kelompok file ekstensi memainkan peran penting. Semua file yang ada di sistem operasi windows memiliki beberapa ekstensi. Kebanyakan dari mereka yang akan Anda ingat. Sys,. Dll dll Ini semua sistem file. Mengerti sistem operasi Windows file dengan ekstensi dan menggunakan program yang tepat untuk membuka file bagi pengguna. Misalnya ketika Anda membuka Dukungan Microsoft, Windows membantu memiliki ekstensi tertentu dan ada sebagai sebuah file dan kemudian menggunakan sistem operasi Microsoft, explorer untuk membuka file untuk Anda.


Ada ribuan jenis file yang dan ada juga mereka ekstensi. Tetapi untuk semua jendela ekstensi tidak sama program tertentu yang diperlukan untuk dihubungkan ke file. Untuk file yang ada gambar dan ekstensi seperti. Jpeg dan. Bmp jendela terbuka baik Windows faks dan gambar atau Microsoft Paint Viewer untuk file-file ini. Salah satu masalah utama dan akhir adalah pengguna muka de-asosiasi file dengan ekstensi atau salah asosiasi jenis file. Berbagai virus atau spywares akan mempengaruhi komputer Anda dengan mengubah asosiasi file yang dapat menyebabkan kegagalan sistem. Microsoft mendukung, membantu Microsoft, Microsoft Windows telah mendapat banyak dukungan dari pengguna akhir untuk menelepon dan kegagalan sistem yang paling sering disebabkan oleh file yang diubah oleh asosiasi spywares.


Semua pengaturan asosiasi file yang dikelola oleh registri dan jika ada terjadi perubahan yang terjadi dalam registri. Satu harus memastikan untuk berkonsultasi Tek dukungan atau Microsoft Windows support atau bantuan sebelum membuat perubahan pada registri. Berbagai spyware removal program pada saat menghapus spywares komputer Anda mungkin akan mempengaruhi file asosiasi. Cara yang aman adalah pertama mengambil kembali dari salah satu registry atau membuat system restore point sehingga Anda dapat kembali ke negara di mana Anda memiliki semua file asosiasi utuh. Sebagian besar spyware removal program janji untuk menghapus spywares tetapi anda harus yakin program yang tepat untuk Anda.

penamaan file di windows juga mempunyai aturan sebagai berikut:

  1. nama file terdiri dari 8 karakter
  2. tanda dot (.) sebagai pemisah antara nama file dengan type file
  3. type file terdiri dari 3 karakter, misal: exe, bin, doc, dll


Manajemen File LINUX

File system Linux kebanyakan menggunakan ext2 (baca: second extended) atau ext3, file system yang tidak mengalami fragmentasi seperti halnya file system windows (FAT/FAT32). Ext2 juga memiliki system security yang baik dengan menerapkan access permission untuk owner, group owner, dan other.

Atribut File

Setiap sistem dalam mana jemen file mempunyai sistem atribusi yang berbeda beda, namun pada dasarnya di linux mempunyai atribut seperti berikut ini:

Nama: Nama berkas simbolik ini adalah informasi satu-satunya yang disimpan dalam format yang dapat dibaca oleh pengguna.

Indentifiers: Tanda unik ini yang biasanya merupakan sebuah angka, mengenali berkas didalam sebuah berkas; tidak dapat dibaca oleh pengguna.

Tipe: Informasi ini diperlukan untuk sistem-sistem yang mendukung tipe berbeda (misal: .tar.gz pada kompresi, .tex pada dokumen latex).

Lokasi: Informasi ini adalah sebuah penunjuk pada sebuah device terse but(misal: harddisk, UFD(usb  ashdisk),  oppy, DVD rom dll).

Ukuran: Ukuran dari sebuah berkas (dalam bytes, words, atau, blocks) dan mungkin ukuran maksimum dalam atribut juga.

Permission : Informasi yang menentukan siapa yang dapat melakukan read, write, execute, dan lainnya.

Waktu dan identifikasi pengguna : informasi ini dapat disimpan untuk pembuatan berkas, modifikasi terakhir, dan penggunaan terakhir. Data-data ini dapat berguna untuk proteksi, keamanan, dan monitoring pengggunaan.

Izin Akses File (File Permission)

Tidak seperti halnya sistem operasi DOS, setiap file Linux memiliki status izin akses (file permission). Maksudnya setiap file memiliki informasi untuk mengatur siapa yang berhak untuk membaca, menjalankan atau mengubah file tersebut.

Linux merupakan sistem operasi multiuser dan umumnya digunakan sebagai sistem operasi untuk jaringan. Oleh karena itu untuk menjaga privasi file, keamanan serta integritas sistem agar tidak terganggu, izin akses file digunakan untuk melindungi file/sistem dari orang lain yang tidak mempunyai hak.

Perhatikan file di bawah ini :

darkstar:~$ ls –l filetes

-rw-r- -r- – l juli users 121 Dec 17 12:12 filetes

Notasi yang dicetak tebal-miring itulah yang menyatakan izin akses file.

- rw- r– r– 1 juli users

    1  2  3  4

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