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I have all the command line utils installed, and need to split an existing .zip
(or) new file(s) into (50MB) .zip
segments in Terminal.
i.e. Folder X = 900MB > Create self extracting .zip
archive > Split .zip
archive into 50MB Segments (i.e. Folder.X.001.zip
)
According to the man page here are the commands:
Copyright (c) 1990-2008 Info-ZIP - Type 'zip "-L"' for software license.
Zip 3.0 (July 5th 2008). Usage:
zip [-options] [-b path] [-t mmddyyyy] [-n suffixes] [zipfile list] [-xi list]
The default action is to add or replace zipfile entries from list, which
can include the special name - to compress standard input.
If zipfile and list are omitted, zip compresses stdin to stdout.
-f freshen: only changed files -u update: only changed or new files
-d delete entries in zipfile -m move into zipfile (delete OS files)
-r recurse into directories -j junk (don't record) directory names
-0 store only -l convert LF to CR LF (-ll CR LF to LF)
-1 compress faster -9 compress better
-q quiet operation -v verbose operation/print version info
-c add one-line comments -z add zipfile comment
-@ read names from stdin -o make zipfile as old as latest entry
-x exclude the following names -i include only the following names
-F fix zipfile (-FF try harder) -D do not add directory entries
-A adjust self-extracting exe -J junk zipfile prefix (unzipsfx)
-T test zipfile integrity -X eXclude eXtra file attributes
-y store symbolic links as the link instead of the referenced file
-e encrypt -n don't compress these suffixes
-h2 show more help
with -h2
I get:
Splits (archives created as a set of split files):
-s ssize create split archive with splits of size ssize, where ssize nm
n number and m multiplier (kmgt, default m), 100k -> 100 kB
-sp pause after each split closed to allow changing disks
WARNING: Archives created with -sp use data descriptors and should
work with most unzips but may not work with some
-sb ring bell when pause
-sv be verbose about creating splits
Split archives CANNOT be updated, but see --out and Copy Mode below
.....
Using --out (output to new archive):
--out oa output to new archive oa
Instead of updating input archive, create new output archive oa.
Result is same as without --out but in new archive. Input archive
unchanged.
WARNING: --out ALWAYS overwrites any existing output file
For example, to create new_archive like old_archive but add newfile1
and newfile2:
zip old_archive newfile1 newfile2 --out new_archive
Cannot update split archive, so use --out to out new archive:
zip in_split_archive newfile1 newfile2 --out out_split_archive
If input is split, output will default to same split size
Use -s=0 or -s- to turn off splitting to convert split to single file:
zip in_split_archive -s 0 --out out_single_file_archive
WARNING: If overwriting old split archive but need less splits,
old splits not overwritten are not needed but remain
1I was able to extract my data from the split .zip files (created with Zip 3.0 on the Mac OS X 10.11 command line) using 7-Zip running on Windows in a virtual machine. I just pointed 7-Zip at the new.zip file in a shared folder and it worked like a charm. – User5910 – 2016-11-27T04:43:46.253
3While you cannot simply use
unzip new.zip
, you can just click onnew.zip
in macOS and it all works. Thanks! – Dan Rosenstark – 2018-03-05T23:25:37.217