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# dos.library — AmigaDOS Overview

## Section Index

| File | Description |
|---|---|
| [dos_base.md](dos_base.md) | DosLibrary structure and global state |
| [file_io.md](file_io.md) | Open, Close, Read, Write, Seek |
| [locks_examine.md](locks_examine.md) | Lock, UnLock, Examine, ExNext, ExAll |
| [pattern_matching.md](pattern_matching.md) | ParsePattern, MatchPattern, wildcards |
| [process_management.md](process_management.md) | CreateNewProc, SystemTagList, Execute |
| [packet_system.md](packet_system.md) | DosPacket, ACTION_* codes, handler protocol |
| [filesystem.md](filesystem.md) | FFS/OFS layout, block structure |
| [environment.md](environment.md) | GetVar/SetVar, local/global env variables |
| [error_handling.md](error_handling.md) | IoErr, Fault, PrintFault, error codes |
| [cli_shell.md](cli_shell.md) | CLI/Shell: pipes, redirection, scripts, ReadArgs |