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 manpage 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