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cdesc-Open3.yaml
(838 B)
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popen3-i.yaml
(1021 B)
Editing: popen3-i.yaml
--- !ruby/object:RI::MethodDescription aliases: [] block_params: "" comment: - !ruby/struct:SM::Flow::P body: "Open stdin, stdout, and stderr streams and start external executable. Non-block form:" - !ruby/struct:SM::Flow::VERB body: " require 'open3'\n\n stdin, stdout, stderr = Open3.popen3(cmd)\n" - !ruby/struct:SM::Flow::P body: "Block form:" - !ruby/struct:SM::Flow::VERB body: " require 'open3'\n\n Open3.popen3(cmd) { |stdin, stdout, stderr| ... }\n" - !ruby/struct:SM::Flow::P body: The parameter <tt>cmd</tt> is passed directly to Kernel#exec. - !ruby/struct:SM::Flow::P body: _popen3_ is like <em>system</em> in that you can pass extra parameters, and the strings won't be mangled by shell expansion. - !ruby/struct:SM::Flow::VERB body: " stdin, stdout, stderr = Open3.popen3('identify', '/weird path/with spaces/and "strange" characters.jpg')\n result = stdout.read\n" full_name: Open3#popen3 is_singleton: false name: popen3 params: (*cmd) {|| ...} visibility: public
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