The file storage for Linux starts with "/", "/" is the root directory and the root directory is a subdirectory. Directory names are case-sensitive
A common directory
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Linux cannot exceed four primary partitions because the partitioned table can only record information for 4 partitions, so it is generally divided into three primary partitions and one extended partition. The first sector of a hard disk is the master boot record and the partition table,
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Linux learning (that's what Linux should learn) 5