Users & Groups
What Are Users and Groups? Every process and file on Linux is owned by a user ID (UID) and a group ID (GID) — numbers, not names. Usernames …
Jan 20, 2026
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Users
2 articles
Permissions & User Commands
Permissions: chmod chmod 644 file.txt # owner rw-, group r--, others r-- (standard for files) chmod 755 script.sh # owner rwx, group r-x, …
Jan 20, 2026
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