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Kernel$$CHILD_STATUS -> Process::Status | nil (18108)

• 1.8.7
• 1.9.2
• 1.9.3

• 変数

$? の別名

...$? の別名

require "English"

out = `wget http://www2.ruby-lang.org/ja/LICENSE.txt -O - 2>/dev/null`

if $CHILD_STATUS.to_i == 0
print "wget success\n"
out.split(/\n/).each { |line|
printf "%s\n", line
}
else
print "wget failed\n"
end...

• Kernel$?