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UNIX in a Nutshell: System V Edition

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The Awk Scripting Language
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close

close(filename-expr)
close(command-expr)

In most implementations of awk, you can only have ten files open simultaneously and one pipe. Therefore, nawk provides a close statement that allows you to close a file or a pipe. It takes as an argument the same expression that opened the pipe or file. {N}


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