trusty 14.04 | xenial 16.04 | bionic 18.04 | focal 20.04 | jammy 22.04 | noble 24.04 | plucky 25.04 | questing 25.10 | resolute 26.04 | Section Description |
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| tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(1), tr(1) | tr(1), tr(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) |
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