Linux file and directories set privileges and owner and tar gz

linux.txt

To recursively give directories read&execute privileges:
find /path/to/base/dir -type d -exec chmod 755 {} +

To recursively give files read privileges:
find /path/to/base/dir -type f -exec chmod 644 {} +

Changing owner of a directory recursively:
chown -R user:group direcory_to_be_changed

How to find all Zero bytes files in directory including subdirectories:
find $dir -size 0 -print 

создать .tar.gz (архив):
tar -czvf file.tar.gz /full/path

распаковать запаковывай .tar:
tar -xvf file.tar.gz

Бэкап базы mysql:
mysqldump -h 127.0.0.1 -u root -pPassword DBName | gzip > fileName.sql.gz

Заливаем бекап в базу данных
mysql -u USER -pPASSWORD DATABASE < /path/to/dump.sql

Заливаем архив бекапа в базу
gunzip < /path/to/outputfile.sql.gz | mysql -u USER -pPASSWORD DATABASE
или так
zcat /path/to/outputfile.sql.gz | mysql -u USER -pPASSWORD DATABASE