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- scan string format varname1 ?varname2 ...?
- This command parses fields from an input string in the
- same fashion as the C sscanf procedure. String gives
- the input to be parsed and format indicates how to
- parse it, using % fields as in sscanf. All of the
- sscanf options are valid; see the sscanf man page for
- details. Each varname gives the name of a variable;
- when a field is scanned from string, the result is
- converted back into a string and assigned to the
- corresponding varname. The only unusual conversion is
- for %c. For %c conversions a single character value is
- converted to a decimal string, which is then assigned
- to the corresponding varname; no field width may be
- specified for this conversion.
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