Set Properties File with SED

sed -ie s/^vm.swappiness.*=.*/vm.swappiness=34/ /etc/sysctl.conf

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get unix command exit code

	grep xyz /etc/abc.conf
	commandExitCode=$?

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Extract value from string in groovy

	def f = new File("strings.xml")
	def m = (f.text =~ "myAttribute\">(.*)<.*")
	println m[0][1]

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Get all tables that have a certain field

select table_name from columns where table_schema = 'mydatabase' and column_name = 'looking_for_this_field';