Chapter 7
KDE Plasma Desktop, also referred to simply as Plasma, is a graphical user interface (GUI) environment designed primarily for Linux systems [Wikipedia KDE Plasma 5]. It's known for being customizable and user-friendly.
See the first item in menu that is for introducing of Predator-OS.
Most filesystem implementations define seven types of files. Even when developers add something new and wonderful to the file tree (such as the process information under /proc), it must still be made to look like one of these seven types:
Pathname Contents
/bin
Core operating system commands
/boot
Boot loader, kernel, and files needed by the kernel
/compat
On FreeBSD, files and libraries for Linux binary compatibility
/dev
Device entries for disks, printers, pseudo-terminals, etc.
/etc
Critical startup and configuration files
/home
Default home directories for users
/lib
Libraries, shared libraries, and commands used by /bin and /sbin
/media
Mount points for filesystems on removable media
/mnt
Temporary mount points, mounts for removable media
/opt
Optional software packages (rarely used, for compatibility)
/proc
Information about all running processes
/root
Home directory of the superuser (sometimes just /)
/run
Rendezvous points for running programs (PIDs, sockets, etc.)
/sbin
Core operating system commands a
/srv
Files held for distribution through web or other servers
/sys
A plethora of different kernel interfaces (Linux)
/tmp
Temporary files that may disappear between reboots
/usr
Hierarchy of secondary files and commands
/usr/bin
Most commands and executable files
/usr/include
Header files for compiling C programs
/usr/lib
Libraries; also, support files for standard programs
/usr/local
Local software or configuration data; mirrors /usr
/usr/sbin
Less essential commands for administration and repair
/usr/share
Items that might be common to multiple systems
usr/share/man
On-line manual pages
/usr/src
Source code for nonlocal software (not widely used)
/usr/tmp
More temporary space (preserved between reboots)
/var
System-specific data and a few configuration files
/var/adm
Varies: logs, setup records, strange administrative bits
/var/log
System log files
/var/run
Same function as /run; now often a symlink
/var/spool
Spooling (that is, storage) directories for printers, mail, etc.
/var/tmp
More temporary space (preserved between reboots)