Linux Filesystem Hierarchy
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Linux filesystem: /etc for configuration, /var for logs and data, /tmp for temporary files, /home for user files, /bin for programs, /proc for virtual kernel information, and /dev for device files.
Linux Directory Structure
/ # root
/bin # essential binaries (ls, cp, bash)
/sbin # system binaries (fdisk, ifconfig)
/etc # configuration files
/home # user home directories
/var # variable data (logs, databases)
/tmp # temporary files (cleared on reboot)
/usr # user programs
/lib # libraries
/dev # device files
/proc # kernel virtual filesystem
/mnt # mount points