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an fsck program that checks for and corrects inconsistencies e2image save critical ext2/ext3/ext4 filesystem metadata to a file e2label change the label on an ext2/ext3/ext4 filesystem e2scrub check a filesystem "online" (i.e. without having to unmount it) in the case where the filesystem is on an LVM LV e2undo
In OS/2 version 1.2 and later, the High Performance File System was designed with extended attributes in mind, but support for them was also retro-fitted on the FAT filesystem of DOS. For compatibility with other operating systems using a FAT partition, OS/2 attributes are stored inside a single file "EA DATA. SF" located in the root directory ...
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]
In Unix and Unix-like systems, including POSIX-conforming systems, each file has a 'mode' containing 9 bit flags controlling read, write and execute permission for each of the file's owner, group and all other users (see File-system permissions §Traditional Unix permissions for more details) plus the setuid and setgid bit flags and a 'sticky' bit flag.
It has metadata structure inspired by traditional Unix filesystem principles, and was designed by Rémy Card to overcome certain limitations of the MINIX file system. [ 4 ] [ 2 ] It was the first implementation that used the virtual file system (VFS), for which support was added in the Linux kernel in version 0.96c, and it could handle file ...
Extent-based file systems can also eliminate most of the metadata overhead of large files that would traditionally be taken up by the block-allocation tree. But because the savings are small compared to the amount of stored data (for all file sizes in general) but make up a large portion of the metadata (for large files), the overall benefits ...
32-bit kernel 2.6.x systems with option CONFIG_LBD and all 64-bit kernel 2.6.x systems have an 8 ZB limit for all file systems. [5] Android: Android is based on Linux, which determines its base limits. Internal storage: Android 2.3 and later uses the ext4 file system. [6] Android 2.2 and earlier uses the YAFFS2 file system. External storage slots:
ExifTool is a free and open-source software program for reading, writing, and manipulating image, audio, video, and PDF metadata.As such, ExifTool classes as a tag editor.It is platform independent, available as both a Perl library (Image::ExifTool) and a command-line application.