desync(1) desync(1) NAME desync-chop - Read chunks from a file according to an index SYNOPSIS desync chop [flags] DESCRIPTION Reads the index and extracts all referenced chunks from the file into a store, local or remote. Does not modify the input file or index in any way. It's used to populate a chunk store by chopping up a file according to an existing index. To exclude chunks that are known to exist in the target store already, use --ignore which will skip any chunks from the given index. The same can be achieved by providing the chunks in their ASCII representation in a text file with --ignore-chunks . Use '-' to read the index from STDIN. OPTIONS --ca-cert="" trust authorities in this file, instead of OS trust store -r, --cache-repair[=true] replace invalid chunks in the cache from source --client-cert="" path to client certificate for TLS authentication --client-key="" path to client key for TLS authentication -n, --concurrency=10 number of concurrent goroutines -e, --error-retry=3 number of times to retry in case of network error -b, --error-retry-base-interval=500ms initial retry delay, increases linearly with each subsequent attempt -h, --help[=false] help for chop --ignore=[] index(es) with chunks to be excluded --ignore-chunks=[] text file with chunk IDs to be excluded -s, --store="" target store -t, --trust-insecure[=false] trust invalid certificates OPTIONS INHERITED FROM PARENT COMMANDS --config="" config file (default $HOME/.config/desync/config.json) --digest="sha512-256" digest algorithm, sha512-256 or sha256 --verbose[=false] verbose mode EXAMPLE desync chop -s sftp://192.168.1.1/store file.caibx largefile.bin SEE ALSO desync(1) HISTORY 5-Sep-2026 Auto generated by spf13/cobra desync Sep 2026 desync(1)