POSIX ustar format

E299200
file archive format tar archive format

POSIX ustar format is a standardized tar archive format defined by POSIX to ensure portable storage of file metadata and contents across Unix-like systems.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (2)

Label Occurrences
POSIX ustar format canonical 2
POSIX file archive utilities specification 1

Statements (48)

Predicate Object
instanceOf file archive format ⓘ
tar archive format ⓘ
alsoKnownAs POSIX tar format ⓘ
ustar ⓘ
backwardsCompatibleWith traditional Unix V7 tar format ⓘ
blockTermination two 512-byte blocks of zero bytes at end of archive ⓘ
category archive file format ⓘ
checksumAlgorithm simple unsigned byte sum over header ⓘ
definedIn POSIX ⓘ
surface form: IEEE Std 1003.1

POSIX ⓘ
surface form: POSIX.1
designedFor interoperability between different Unix implementations ⓘ
extendedBy GNU Tar ⓘ
surface form: GNU tar format

POSIX pax interchange format ⓘ
fileNameFieldLength 100 bytes ⓘ
fileTypeSupport FIFO ⓘ
block device ⓘ
character device ⓘ
directory ⓘ
hard link ⓘ
regular file ⓘ
symbolic link ⓘ
headerBlockSize 512 bytes ⓘ
limitation cannot represent very large files beyond octal size field limit ⓘ
cannot represent very long path names beyond prefix limit ⓘ
magicField "ustar" ⓘ
magicFieldLength 6 bytes ⓘ
prefixFieldLength 155 bytes ⓘ
purpose portable storage of file metadata and contents ⓘ
recordSize multiple of 512 bytes ⓘ
standardizedBy POSIX ⓘ
stores checksum ⓘ
device major number ⓘ
device minor number ⓘ
file mode ⓘ
file name ⓘ
file size ⓘ
file type flag ⓘ
group ID ⓘ
group name ⓘ
link name ⓘ
modification time ⓘ
prefix for long path names ⓘ
user ID ⓘ
user name ⓘ
supportsPathLengthUpTo 256 characters ⓘ
usedOn Unix-like systems ⓘ
versionField "00" ⓘ
versionFieldLength 2 bytes ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

GNU Tar → supportsFeature → POSIX ustar format ⓘ
POSIX tar → partOf → POSIX ustar format ⓘ
this entity surface form: POSIX file archive utilities specification
POSIX tar → alsoKnownAs → POSIX ustar format ⓘ