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Linux is an open-source Unix-like operating system.
Kernel is the core of the OS that manages hardware and processes.
A distribution bundles Linux kernel with tools and packages.
Root has full administrative privileges.
Displays current working directory.
Lists files and directories.
Hard links point to inode; soft links point to path.
Stores file metadata.
Use df -h and du -sh.
Use free -h.
Searches text patterns.
Finds files and directories.
Changes permissions.
Changes ownership.
Use ps, top, htop.
Modern Linux init system.
Manages services.
Secure remote login protocol.
Schedules tasks.
Resolves names to IP addresses.
Network file sharing service.
Combines disks for redundancy/performance.
Flexible logical storage management.
RAID focuses on disks; LVM on volume management.
Use ss -tulnp.
Containerization platform.
Popular web server.
Use journalctl and tail.
BIOS/UEFI тЖТ GRUB тЖТ Kernel тЖТ systemd.
Practice troubleshooting and commands daily.
Linux рдПрдХ open-source Unix-like operating system рд╣реИред
Kernel OS рдХрд╛ core рднрд╛рдЧ рд╣реИ рдЬреЛ hardware рдФрд░ processes рдХреЛ manage рдХрд░рддрд╛ рд╣реИред
Distribution Linux kernel рдХреЗ рд╕рд╛рде tools рдФрд░ packages рдХрд╛ bundle рд╣реЛрддрд╛ рд╣реИред
Root user рдХреЗ рдкрд╛рд╕ рдкреВрд░реНрдг administrative privileges рд╣реЛрддреЗ рд╣реИрдВред
Current working directory рджрд┐рдЦрд╛рддрд╛ рд╣реИред
Files рдФрд░ directories рдХреА list рджрд┐рдЦрд╛рддрд╛ рд╣реИред
Hard link inode рдкрд░ point рдХрд░рддрд╛ рд╣реИ, soft link path рдкрд░ред
File metadata store рдХрд░рддрд╛ рд╣реИред
df -h рдФрд░ du -sh рдХрд╛ рдЙрдкрдпреЛрдЧ рдХрд░реЗрдВред
free -h рдХрд╛ рдЙрдкрдпреЛрдЧ рдХрд░реЗрдВред
Text patterns search рдХрд░рддрд╛ рд╣реИред
Files рдФрд░ directories рдЦреЛрдЬрддрд╛ рд╣реИред
Permissions рдмрджрд▓рддрд╛ рд╣реИред
Ownership рдмрджрд▓рддрд╛ рд╣реИред
ps, top, htop рдЙрдкрдпреЛрдЧ рдХрд░реЗрдВред
Modern Linux init system рд╣реИред
Services manage рдХрд░рддрд╛ рд╣реИред
Secure remote login protocol рд╣реИред
Scheduled tasks рдЪрд▓рд╛рддрд╛ рд╣реИред
Domain names рдХреЛ IP рдореЗрдВ рдмрджрд▓рддрд╛ рд╣реИред
Network file sharing service рд╣реИред
Disks рдХреЛ redundancy/performance рдХреЗ рд▓рд┐рдП рдЬреЛрдбрд╝рддрд╛ рд╣реИред
Flexible storage management рджреЗрддрд╛ рд╣реИред
RAID disks рдкрд░, LVM volume management рдкрд░ рдХреЗрдВрджреНрд░рд┐рдд рд╣реИред
ss -tulnp рдЙрдкрдпреЛрдЧ рдХрд░реЗрдВред
Containerization platform рд╣реИред
Popular web server рд╣реИред
journalctl рдФрд░ tail рдЙрдкрдпреЛрдЧ рдХрд░реЗрдВред
BIOS/UEFI тЖТ GRUB тЖТ Kernel тЖТ systemdред
Daily commands рдФрд░ troubleshooting practice рдХрд░реЗрдВред