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GDAL-VSI-SOZIP(1) GDAL GDAL-VSI-SOZIP(1) NAME gdal-vsi-sozip - SOZIP (Seek-Optimized ZIP) related commands. Added in version 3.11. DESCRIPTION The gdal vsi sozip utility can be used to: • create a SOZip (Seek-Optimized ZIP) file • append files to an existing ZIP/SOZip file • list the contents of a ZIP/SOZip file • validate a SOZip file • convert an existing Zip file into a SOZip optimized one SYNOPSIS Usage: gdal vsi sozip <SUBCOMMAND> [OPTIONS] where <SUBCOMMAND> is one of: - create: Create a Seek-optimized ZIP (SOZIP) file. - list: List content of a ZIP file, with SOZIP related information. - optimize: Create a Seek-optimized ZIP (SOZIP) file from a regular ZIP file. - validate: Validate a ZIP file, possibly using SOZIP optimization. Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] GDAL VSI SOZIP CREATE Description Adds one or several files to a new or existing zip file. Synopsis Usage: gdal vsi sozip create [OPTIONS] <INPUT> <OUTPUT> Create a Seek-optimized ZIP (SOZIP) file. Positional arguments: -i, --input <INPUT> Input filenames [may be repeated] [required] -o, --output <OUTPUT> Output ZIP filename [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] --progress Display progress bar Options: --overwrite Whether overwriting existing output is allowed -r, --recursive Travels the directory structure of the specified directories recursively -j, --junk-paths, --no-paths Store just the name of a saved file, and do not store directory names --enable-sozip <ENABLE-SOZIP> Whether to automatically/systematically/never apply the SOZIP optimization. ENABLE-SOZIP=auto|yes|no (default: auto) --sozip-chunk-size <value in bytes or with K/M suffix> Chunk size for a seek-optimized file (default: 32768) --sozip-min-file-size <value in bytes or with K/M/G suffix> Minimum file size to decide if a file should be seek-optimized (default: 1 MB) --content-type <CONTENT-TYPE> Store the Content-Type of the file being added. -q, --quiet Quiet mode Options -i, --input <INPUT> Input filenames. Required. Several file names or directory names accepted. -o, --output <OUTPUT> Output ZIP filename. Required. Must have a .zip extension --overwrite Whether overwriting existing output is allowed. -r, --recursive Travels the directory structure of the specified directories re- cursively. -j, --junk-paths, --no-paths Store just the name of a saved file (junk the path), and do not store directory names. By default, sozip will store the full path (relative to the current directory). --enable-sozip auto|yes|no In auto mode, a file is seek-optimized only if its size is above the value of --sozip-min-file-size. In yes mode, all input files will be seek-optimized. In no mode, no input files will be seek-optimized. --sozip-chunk-size <value> Chunk size for a seek-optimized file. Defaults to 32768 bytes. The value is specified in bytes, or K and M suffix (optionally preceded by a space) can be respectively used to specify a value in kilo-bytes or mega-bytes. --sozip-min-file-size <value> Minimum file size to decide if a file should be seek-optimized, in --enable-sozip=auto mode. Defaults to 1 MB byte. The value is specified in bytes, or K, M or G suffix (optionally preceded by a space) can be respectively used to specify a value in kilo-bytes, mega-bytes or giga-bytes. --content-type <value> Store the Content-Type for the file being added as a key-value pair in the extra field extension 'KV' (0x564b) dedicated to storing key-value pair metadata -q, --quiet Do not output any informative message (only errors). Multithreading The GDAL_NUM_THREADS configuration option can be set to ALL_CPUS or a integer value to specify the number of threads to use for SOZip-com- pressed files. Defaults to ALL_CPUS. Examples Example 1: Create a, potentially seek-optimized, ZIP file with the content of my.gpkg gdal vsi sozip create my.gpkg my.gpkg.zip Example 2: Create a, potentially seek-optimized, ZIP file from the content of a source directory: gdal vsi sozip create -r source_dir/ my.gpkg.zip GDAL VSI SOZIP OPTIMIZE Description Create a new zip file from the content of an existing one, possibly ap- plying SOZip optimization when relevant. Synopsis Usage: gdal vsi sozip optimize [OPTIONS] <INPUT> <OUTPUT> Create a Seek-optimized ZIP (SOZIP) file from a regular ZIP file. Positional arguments: -i, --input <INPUT> Input ZIP filename [required] -o, --output <OUTPUT> Output ZIP filename [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] --progress Display progress bar Options: --overwrite Whether overwriting existing output is allowed --enable-sozip <ENABLE-SOZIP> Whether to automatically/systematically/never apply the SOZIP optimization. ENABLE-SOZIP=auto|yes|no (default: auto) --sozip-chunk-size <value in bytes or with K/M suffix> Chunk size for a seek-optimized file (default: 32768) --sozip-min-file-size <value in bytes or with K/M/G suffix> Minimum file size to decide if a file should be seek-optimized (default: 1 MB) -q, --quiet Quiet mode Options -i, --input <INPUT> Input ZIP filename. Required. -o, --output <OUTPUT> Output ZIP filename. Required. Must have a .zip extension --overwrite Whether overwriting existing output is allowed. --enable-sozip auto|yes|no In auto mode, a file is seek-optimized only if its size is above the value of --sozip-chunk-size. In yes mode, all input files will be seek-optimized. In no mode, no input files will be seek-optimized. --sozip-chunk-size <value> Chunk size for a seek-optimized file. Defaults to 32768 bytes. The value is specified in bytes, or K and M suffix can be re- spectively used to specify a value in kilo-bytes or mega-bytes. --sozip-min-file-size <value> Minimum file size to decide if a file should be seek-optimized, in --enable-sozip=auto mode. Defaults to 1 MB byte. The value is specified in bytes, or K, M or G suffix can be respectively used to specify a value in kilo-bytes, mega-bytes or giga-bytes. -q, --quiet Do not output any informative message (only errors). Multithreading The GDAL_NUM_THREADS configuration option can be set to ALL_CPUS or a integer value to specify the number of threads to use for SOZip-com- pressed files. Defaults to ALL_CPUS. Examples Example 3: Create a, potentially seek-optimized, ZIP file sozip_opti- mized.zip from an existing ZIP file in.zip. gdal vsi sozip optimize in.zip sozip_optimized.zip GDAL VSI SOZIP LIST Description List the files contained in the zip file in an output similar to Info-ZIP unzip utility, but with the addition of a column indicating whether each file is seek-optimized. Synopsis Usage: gdal vsi sozip list [OPTIONS] <INPUT> List content of a ZIP file, with SOZIP related information. Positional arguments: -i, --input <INPUT> Input ZIP filename [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] Options -i, --input <INPUT> Input ZIP filename. Required. Examples Example 4: List contents of my.zip. gdal vsi sozip list my.zip GDAL VSI SOZIP VALIDATE Description Validates a SOZip file. Baseline ZIP validation is done in a light way, limited to being able to browse through ZIP records with the In- foZIP-based ZIP reader used by GDAL. But validation of the SOZip-spe- cific aspects is done in a more thorougful way. Synopsis Usage: gdal vsi sozip list [OPTIONS] <INPUT> List content of a ZIP file, with SOZIP related information. Positional arguments: -i, --input <INPUT> Input ZIP filename [required] Common Options: -h, --help Display help message and exit --json-usage Display usage as JSON document and exit --config <KEY>=<VALUE> Configuration option [may be repeated] Options -i, --input <INPUT> Input ZIP filename. Required. -q, --quiet Do not output any informative message (only errors). -v, --verbose Turn on verbose mode. Examples Example 5: Validate my.zip. gdal vsi sozip validate my.zip AUTHOR Even Rouault <even.rouault@spatialys.com> COPYRIGHT 1998-2025 Jul 12, 2025 GDAL-VSI-SOZIP(1)
NAME | DESCRIPTION | SYNOPSIS | GDAL VSI SOZIP CREATE | GDAL VSI SOZIP OPTIMIZE | GDAL VSI SOZIP LIST | GDAL VSI SOZIP VALIDATE | AUTHOR | COPYRIGHT
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