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  2. Append - Wikipedia

    en.wikipedia.org/wiki/Append

    When opening a file, use the ">>" mode to append rather than over write. open ... In Python, use the list method extend or the infix operators + and += to append lists.

  3. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Windows Event Viewer file format 45 6C 66 46 69 6C 65: ElfFile: 0 evtx Windows Event Viewer XML file format 73 64 62 66: sdbf: 8 sdb Windows customized database 50 4D 43 43: PMCC: 0 grp Windows 3.x Program Manager Program Group file format 4B 43 4D 53: KCMS: 0 icm ICC profile: 72 65 67 66: regf: 0 dat hiv Windows Registry file 21 42 44 4E!BDN ...

  4. ext4 - Wikipedia

    en.wikipedia.org/wiki/Ext4

    ext4 (fourth extended filesystem) is a journaling file system for Linux, developed as the successor to ext3.. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by Cluster File Systems for the Lustre file system between 2003 and 2006, meant to extend storage limits and add other performance improvements. [4]

  5. List of file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_file_formats

    Examples of operating systems that do not impose this limit include Unix-like systems, and Microsoft Windows NT, 95-98, and ME which have no three character limit on extensions for 32-bit or 64-bit applications on file systems other than pre-Windows 95 and Windows NT 3.5 versions of the FAT file system. Some filenames are given extensions ...

  6. File attribute - Wikipedia

    en.wikipedia.org/wiki/File_attribute

    Common file attributes supported by many common Linux file systems Attribute lsattr flag chattr option Semantics and rationale No atime updates A +A,-A: atime record is not modified when file is read/accessed. Append-only a +a,-a: Writing to file only allowed in append mode. Immutable i +i,-i

  7. Extended file attributes - Wikipedia

    en.wikipedia.org/wiki/Extended_file_attributes

    The Windows Subsystem for Linux added in the Windows 10 Anniversary Update uses them for similar purposes, storing the Linux file mode, owner, device ID (if applicable), and file times in the extended attributes. [27] Additionally, NTFS can store arbitrary-length extended attributes in the form of alternate data streams (ADS), a type of ...

  8. File size - Wikipedia

    en.wikipedia.org/wiki/File_size

    File size is a measure of how much data a computer file contains or how much storage space it is allocated. Typically, file size is expressed in units based on byte. A large value is often expressed with a metric prefix (as in megabyte and gigabyte) or a binary prefix (as in mebibyte and gibibyte). [1]

  9. File descriptor - Wikipedia

    en.wikipedia.org/wiki/File_descriptor

    File descriptors for a single process, file table and inode table. Note that multiple file descriptors can refer to the same file table entry (e.g., as a result of the dup system call [3]: 104 ) and that multiple file table entries can in turn refer to the same inode (if it has been opened multiple times; the table is still simplified because it represents inodes by file names, even though an ...