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1answer
29 views

BASH: bz2 to gzip conversion with find

I would like to convert a muliply bzip2 files to gzip format. I achived this with foor loop but I would like to do the same with find: BASH for loop: for i in $(ls -1 *.bz2); do echo "Converting: $i ...
0
votes
1answer
283 views

Unable to Unzip a tar.gz.bz2

We run daily backups of our MySQL server. Using the following script: [ ! -d "${DEST}" ] && mkdir -p "${DEST}" FILE=${DEST}/mysql-live.${NOW}-$(date +"%T").tar.gz.bz2 # get around error ...
0
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0answers
43 views

Bzip2 not deleting original files

I have a 100GB large backup file, which i compress with bzip2. But bzip2 for some reason keeps the original file. If i try it, it deletes the original file as it should: # touch file # ls file* ...
6
votes
4answers
249 views

Join large overlapping files

I am trying to recover a (MySQL) database from a crashed disk. There are a number of recent dumps, which are corrupted bz2 files. Since the database does not change often, the dumps should be nearly ...
0
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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
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2answers
370 views

CRC Failed, File is broken, using php system command to tar a directory

Can anybody see a problem with the below PHP code? Or have any ideas to troubleshoot a solution as to why whenever I download the backup file.tar.gz and try to open it using 7zip on windows... that I ...
6
votes
1answer
269 views

Ultra-efficient compression

I store a very large (TBytes) amount of logs. These logs will rarely be extracted, and when they will - only a single file will be required. Could you recommend an ultra-efficient and extremely ...
0
votes
3answers
320 views

How to use bzdiff to find difference between 2 bzipped files with diff -I option?

I'm trying to do a diff on MySQL dumps (created with mysqldump and piped to bzip2), to see if there are changes between consecutive dumps. The followings are the tails of 2 dumps: tmp1: /*!40101 SET ...
5
votes
3answers
3k views

How to list content from a tar file without recursion?

I've a tar (gz, bzip) file and want to see its content, but not recursively. This is: The "first level" in the file. I already know how to see content: tar -ztf file.tar.gz But it's recursive!! ...
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 ...
6
votes
4answers
5k views

How can I recursively bzip2 all files that aren't bzipped?

How can I recursively bzip2 all files that do not end with the .bz2 extension in Linux?
1
vote
1answer
334 views

bzip2 and compressed stream concatenation

With gzip you can do something like this: gzip -c file1 > output.gz gzip -c file2 >> output.gz gzip -c file3 >> output.gz and when you uncompress output.gz it will contain ...
0
votes
2answers
3k views

How do I fix a broken tar file?

I have a 46GB tar file containing an .img of an old partition. Unfortunately, it produces a 0-byte file when un-tar'ed. The tar file was produced on linux, I'm on windows now. I have tried WinRAR, ...