Created
October 4, 2012 00:24
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ruby popen fds
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| open('/tmp/f','w'){|f| f << 'sekrit'} | |
| f = open('/tmp/f') | |
| exec("ruby -e 'p IO.open(#{f.fileno}).read'") | |
| # Prints 'sekrit' |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| open('/tmp/f','w'){|f| f << 'sekrit'} | |
| f = open('/tmp/f') | |
| IO.popen("ruby -e 'p IO.open(#{f.fileno}).read'") | |
| # Fails 'Bad file descriptor' |
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