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Full Discussion: Copy file only if newer
Top Forums Shell Programming and Scripting Copy file only if newer Post 303024483 by rdrtx1 on Tuesday 9th of October 2018 02:49:14 PM
Old 10-09-2018
try:
Code:
[[ Ubuntu_Documents.zip -nt $DOCS_Backup/Ubuntu_Documents_`date +"%Y-%m-%d-%H-%M"`.zip ]] && cp Ubuntu_Documents.zip $DOCS_Backup/Ubuntu_Documents_`date +"%Y-%m-%d-%H-%M"`.zip

Not sure if shell used supports it. It was not specified.
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zipnote(1)						      General Commands Manual							zipnote(1)

NAME
zipsplit - split a zipfile into smaller zipfiles SYNOPSIS
zipsplit [-t] [-i] [-p] [-s] [-n size] [-r room] [-b path] [-h] [-v] [-L] zipfile ARGUMENTS
zipfile Zipfile to split. OPTIONS
-t Report how many files it will take, but don't make them. -i Make index (zipsplit.idx) and count its size against first zip file. -n size Make zip files no larger than "size" (default = 36000). -r room Leave room for "room" bytes on the first disk (default = 0). -b path Use path for the output zip files. -p Pause between output zip files. -s Do a sequential split even if it takes more zip files. -h Show a short help. -v Show version information. -L Show software license. DESCRIPTION
zipsplit reads a zipfile and splits it into smaller zipfiles. EXAMPLES
To be filled in. BUGS
Does not yet support large (> 2 GB) or split archives. SEE ALSO
zip(1), unzip(1) AUTHOR
Info-ZIP v3.0 of 8 May 2008 zipnote(1)
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