method
capture
v4.2.9 -
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Class: Kernel
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- What's this?
capture(stream)
public
Captures the given stream and returns it:
stream = capture(:stdout) { puts 'notice' } stream # => "notice\n" stream = capture(:stderr) { warn 'error' } stream # => "error\n"
even for subprocesses:
stream = capture(:stdout) { system('echo notice') } stream # => "notice\n" stream = capture(:stderr) { system('echo error 1>&2') } stream # => "error\n"