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Contents -> USER MANUAL AND TUTORIALS -> Using spec with C-PLOT and Other UNIX Utilities -> Scans.4 -> The Index File
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1.4.2.6. - The Index File



Indexing a long ASCII data file to find at what byte offset each scan begins takes time. Once scans.4 has indexed a file, it saves the index information in a binary-format index file. The name of the index file is formed by appending .I to the original data-file name. As long as the index file is more recent than the data file, scans.4 will take the index information from the index file.


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