##/
(root, root directory) related to the boot system
##/bin
Commands Place commands that are still operational in single-user maintenance mode
##/boot
kernel file boot menu boot configuration file
/boot/grub
##/dev
Devices and Interface Devices
/dev/null
/dev/zero
/dev/tty
/dev/lp*
/dev/hd*
/dev/sd*
##/etc
The main system configuration file Account password is not recommended to put executable files
/etc/inittab
/etc/init.d where all scripts that are started by default are stored
List of service configurations managed by /etc/xinetd.d super daemon
/etc/modproce.confg
/etc/X11 X Windows configuration information
/etc/fstab Configuration file mounted on boot
The format is as follows
- The first column of device file name or device label name
- Second column mount point
- The file system of the disk partition in the third column
- Fourth column file system parameters
- Can the fifth column be used by the dump backup command?
- whether the sixth column checks sectors with fsck
/etc/sysconfig
/etc/passwd user information
##/home
The default user home folder of the system, each user has a folder with its own name in this directory
##/lib
Place the function library used by the boot and /bin /sbin commands
/lib/modules places kernel related modules (drivers)
##/media
Places removable devices including floppy disks, CD-ROMs, DVDs
/media/cdrom CD-ROM mount location under linux
/media/floppy
## / mnt
Used to temporarily mount additional devices
##/opt
Directory for third-party software (independently planned software)
##/root
root user's home folder
##/sbin
Commands that are only available to the root user can be invoked during the boot process
##/usr (UNIX software resource)
Something related to system installation execution
/usr/sbin some server software programs
/usr/local
/usr/local/sbin The executable file generated by the machine's self-installation
##/srv
service network service stuff
##/where
(variable) related to the system operation process
##/tmp
Temporary Files
##/proc
Virtual file system The data placed in this file exists in memory and does not occupy hard disk space
##/sys
The virtual file system mainly records kernel-related information and does not occupy hard disk space
* /lost+found ext2/ext3 file system format generated directory