OS/2, eCS & ArcaOS - Technical > Utilities

7z archiver

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Ian B Manners:
Hi all,

I'm looking at the archiver/zip/unzip utility 7z (p7zip-9.20.1-os2.zip from Ruediger Ihle), people seem to want to use this program for distributing software and backups but as far as I can see, it doesn't support OS/2's EA's, and there seems to be no way to set the date/time of the created archive to that of the latest date/time of the files archived.

The last is a real deal breaker for me as I deal with a lot of software, and it's one of the ways I check if there are any differences in different versions of an archive beyond the archive size. ie, with unzip.exe you simply use "unzip -T *.zip"  to 'Updated time stamp for p7zip-9.20.1-os2.zip'. I've gone through the docs and for 7z and I cant see any other command that does something like this. 7z does at least have an archive testing switch.

Is there anyone who uses 7z enough to get a feel for the program, or can tell me if I'm missing some switches that enable the inclusion of EA's ?

Eugene Gorbunoff:
Zippy supports EA for 7Zip

http://ecomstation.ru/zippy

Ian B Manners:
Hi Eugene,

I'll have a look at zippy but the lack of setting the archive time stamp to its contents date/time is still problematic for a serious zip replacement.

Thanks

Alex Taylor:
Yeah, IMO 7z is only suitable for exchanging archives other platforms. 

ZIP 3.x is probably a better alternative for OS/2.

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