Name
bsearch
- bsearch
fileId key[retvar] [compare_proc] Search file opened with
fileIdfor lines of text matching the stringkey. Return the line that was found, or an empty string if no match exists. If the variable name is specified withretvar, the matching line is stored in the variable and the command returns 1 if the key matched or 0 if there was no match. Can optionally specify a procedure compare_proc that will compare the key and each line, returning a value indicating the collation order (see ccollate).
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