Common Linux directory name (abstract) __linux

Catalog uses

/-----------------The root directory of the virtual directory. Usually don't store files here

/bin-------------binary directory, storing many user-level GNU tools

/boot-----------Boot directory, store startup files

/dev------------device directory, Linux creates device node here

/ETC-------------System Configuration file directory

/home---------Home directory, where Linux creates user directories

/lib--------------Library directory, storing system and application library files

/media---------Media Directory, mount point for removable media devices

/mnt------------Mount directory, another common mount point for removable media devices

/opt-------------Optional directory, often used to store third party packages and data files

/proc-----------Process directory that holds information about existing hardware and current processes

/root------------The home directory of the root user

/sbin-----------System binary directory, storing many GNU administrator tools

/run-------------Run directory to store running data for the system at run time

/srv--------------Directory of services to store the relevant documents for local service

/sys------------System directory, storing system hardware information related documents

/tmp------------temp directory where temporary working files can be created and deleted

/usr-------------user binaries, a large number of user-level GNU tools and data files are stored here

/var--------------variable directories to store frequently changing files, such as log files

Familiarity with these catalogs makes it easy to find the files you're looking for.