|Linux / BSD|
PeaZip file split and merge utility is compatible with most file split applications, like Unix's split command, HJSplit, 7-Zip...
optionally PeaZip can save a separate control file containing checksum or hash of each volume and of the complete original file, allowing file level and volume level integrity check, which will be ignored by other file split utilities, allowing to keep full compatibility with them.
Split a file in smaller parts
Splitting a file you can select the volume size form a series of pre-set sizes (floppy disk, typical mail attachment, CD, DVD...) or you can customize it up to byte level.
Splitting a file does not involve compression, that is usually only marginally efficient on multimedia files, like ie. MP3, OGG and other audio formats, or AVI, MPEG, DIVX and other video formats.
If you prefer to use compression, you can add the file(s) to a ZIP or 7Z archive and chose to split the archive in volumes of a fixed size, in order to keep them below the size limits of a support or mail attachment (see documentation).
This is preferable also when handling multiple multimedia files in order to store them in a single archive, split in fixed sized volumes, rather than having to split each file separately: in this case you can go in "Advanced" tab when creating the archive and select no compression (set compression to "store" level)
Join split file parts
When you receive a multipart file or archive, to join the original file back:
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FAQ > File management > File spanning, split and join files, split archives, join split RAR ZIP file
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