Wulf's Various Things

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====== Tar/gzip examples ======

Add multiple specific files into a single compressed tarball:
<code>
tar czf archive.tar.gz /tmp/something_*.txt /tmp/other.log
</code>


Backup of directory on remote server to local server via ssh
<code>
ssh root@server "(cd /directory/; tar cvzf - *)" > ./localbackup.tar.gz
</code>

Backup of a directory on local system, storing on remote system
<code>
tar zcvf - /your/directory | ssh backup-user@backupserver "cat > /backup/file.tgz"
</code>

Extract remote archive to local system:
<code>ssh remotehost cat /path/to/foo.tar.gz | tar xzf -</code>

===== Complete dd disk image =====

Complete disk image of remote server to local compressed image file via ssh
<code>
#from local server
ssh root@server "(dd bs=32M if=/dev/sda status=progress | gzip -9)" | dd of=./backup-full-sda.gz

#from remote server onto local server:
dd bs=32M if=/dev/sda status=progress | gzip -9 | ssh root@20.30.40.50 "dd of=/backup/sda-backup-file.gz"
</code>

Restore of local compressed disk image to remote server via ssh
<code>
gunzip -c /backup/sda-backup-file.gz | ssh root@original-source-server-ip "dd bs=32M of=/dev/sda"
</code>