Formatted Output
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The functions described in this section (`printf' and related
functions) provide a convenient way to perform formatted output. You
call `printf' with a "format string" or "template string" that
specifies how to format the values of the remaining arguments.
Unless your program is a filter that specifically performs line- or
character-oriented processing, using `printf' or one of the other
related functions described in this section is usually the easiest and
most concise way to perform output. These functions are especially
useful for printing error messages, tables of data, and the like.