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3: file Definition file
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8: A file is a mass of bits that has been given a name and is stored
9: on a nonvolatile medium. These bits may form ASCII characters or
10: machine-executable data. Under the COHERENT system and related
11: operating systems, external devices can mimic files, in that they
12: can be opened, closed, read, and written to in a manner identical
13: to that of files.
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15: To manipulate the contents of a file, you must first open it.
16: This can be done with the COHERENT system call open, or with the
17: function fopen. You can then read the file, write material to
18: it, or append material onto it with the COHERENT system calls
19: rreeaadd and write, or with the functions ffrreeaadd and ffwwrriittee. See the
20: entries on CCOOHHEERREENNTT ssyysstteemm ccaallllss and entry SSTTDDIIOO for more infor-
21: mation on manipulating material within a file.
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23: ***** See Also *****
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25: close(), definitions, executable file, fopen(), fclose(), FILE,
26: open()
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64: COHERENT Lexicon Page 1
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