focal
20.04 LTS		jammy
22.04 LTS		mantic
23.10		noble
24.04 LTS		oracular
24.10		Section Description
sed(1), sed(1), sed(1)sed(1), sed(1), sed(1)sed(1), sed(1), sed(1)sed(1), sed(1), sed(1)sed(1), sed(1), sed(1)(1) - Executable programs or shell commands
.....(2) - System calls (functions provided by the kernel)
.....(3) - Library calls (functions within program libraries)
.....(4) - Special files (usually found in /dev)
.....(5) - File formats and conventions eg /etc/passwd
.....(6) - Games
.....(7) - Miscellaneous (including macro packages and conventions)
.....(8) - System administration commands (usually only for root)