XZ and tricks

xz.markdown

XZ

1. Compress a file (filename.sql will be replaced by filename.sql.xz)

xz filename.sql

2. Uncompress file (filename.sql.xz will be replaced by filename.sql)

xz -d filename.sql.xz

3. Compress folder

tar -cJvf folder.tar.xz folder/

4. Uncompress folder

tar -xJvf folder.tar.xz folder/

5. Compress file from stdin

mysqldump mydatabase | xz > mydump.sql.xz

6. Uncompress and send content to stdout

xzcat mydump.sql.xz | mysql mydatabase

7. Uncompress tar folder from stdin sent from ncat

ncat -l -p 7000 | tar -xJvf -

8. Compress folder to stdout and send to ncat

tar -cJvz - folder/ | ncat targetserver.com 7000