ios.close_write â nil
Instance Public methods
Closes the write end of a duplex I/O stream (i.e., one that contains both a
read and a write stream, such as a pipe). Will raise an
IOError if the stream is not duplexed.
1 2 3 | f = IO.popen("/bin/sh","r+")f.close_writef.print "nowhere" |
produces:
1 2 3 | prog.rb:3:in `write': not opened for writing (IOError) from prog.rb:3:in `print' from prog.rb:3 |
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