0
votes
3answers
1k views

zip does not work for big files

What is the best way to compress a file if it is more than 4 GB in size? I am using the following for last several months. mysqldump --all-databases | zip > mybackup.zip Today I am got an ...
0
votes
3answers
142 views

BZ2 backup files don't differ in size from day to day

Recently I switched from zip to bz2 for compressing nightly database dumps. The command I'm using is tar cj. The old zip files would always differ ever so slightly in size from day to day: -rw-r--r-- ...
1
vote
2answers
1k views

How to use 7-zip to send a Zip64-compressed file to standard output?

I would like to make a Zip64 archive from a bunch of bzip2 files, using 7za's -so option to send the compressed archive to standard output: $ 7za a dummy -tzip -so myFiles*.bz2 > test.zip Here ...