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1.1 ! root 1: ! 2: ! 3: mknod Command mknod ! 4: ! 5: ! 6: ! 7: ! 8: Make a special file or named pipe ! 9: ! 10: /eettcc/mmkknnoodd _f_i_l_e_n_a_m_e _t_y_p_e _m_a_j_o_r _m_i_n_o_r ! 11: /eettcc/mmkknnoodd _f_i_l_e_n_a_m_e pp ! 12: ! 13: In the first form, mknod creates a special file, which provides ! 14: access to a device by the filename specified. Special files are ! 15: conventionally stored in the /dev directory. ! 16: ! 17: type can be either `b' (for block-special file) or `c' (for ! 18: character-special file). Block-special files tend to be devices ! 19: such as disks or magnetic tape, upon which COHERENT uses an ! 20: elaborate buffering strategy. Character-special files are un- ! 21: structured (character at a time) devices such as terminals, line ! 22: printers, or communications devices. Character-special files may ! 23: also be random-access devices; this circumvents system buffering, ! 24: allowing transfers of arbitrary size directly between the user ! 25: and the hardware. ! 26: ! 27: The major device number uniquely identifies a device driver to ! 28: COHERENT. The minor device number is a parameter interpreted by ! 29: the driver; it might specify the channel of a multiplexor or the ! 30: unit number of a drive. ! 31: ! 32: The caller must be the superuser. ! 33: ! 34: In the second form, mknod creates a pipe with the given filename. ! 35: Named pipes can be used for communication between processes. ! 36: ! 37: ***** Files ***** ! 38: ! 39: /dev/* ! 40: ! 41: ***** See Also ***** ! 42: ! 43: commands, mount ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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