19 lines
343 B
Groff
19 lines
343 B
Groff
SYSTEM CALLS
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dup2 - make another descriptor
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INVOCATION
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dup2( desc, new )
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int desc;
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int new;
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EXPLANATION
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The descriptor <desc> is duplicated as descriptor <new>.
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A close(2) is performed on <new> if it was in use.
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RESULTS
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>=0 : The new descriptor.
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-1 : Error.
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REFERENCES
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close(2), dup(2), open(2)
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