wytten’s gists

wytten / gist:c610fbe7d26c3c980d19f43a8beffcf0

Created January 31, 2018 18:21

Bash function that executes Oracle SQL and builds URL and opens it with chrome

	function report
	{
	num="$1"
	chrome $(sqlplus -S username/password@connect_identifier <<EOF
	set echo off
	set verify off
	set timing off
	set heading off
	set feedback off
	set linesize 32767

wytten / count-log-events.sh

Created September 28, 2017 15:45

Use awk to count log events by day, or by hour assuming each line starts with (date)(space)(hour)(colon)

	#!/bin/bash
	# EXAMPLE 1, BY DAY (default delimiter space)
	# otus.decare.com:/logs/foster/WebLogic/DDS_Prod/claimservices > ~/bin/count-log-events.sh " MapMessage received" *.out
	# 2016-08-11 35306
	#
	# EXAMPLE 2, BY HOUR (delimiter colon)
	# otus.decare.com:/logs/foster/WebLogic/DDS_Prod/claimservices > ~/bin/count-log-events.sh -F: " MapMessage received" *.out
	# 2016-08-11 02 6501
	# 2016-08-11 03 3529
	# 2016-08-11 04 13221

wytten / crontab

Created September 13, 2017 13:57

Check for new mail once daily and mail summary

/usr/bin/find /var/mail/yourself -mtime -1 -size +600c | /bin/egrep '.*' > /dev/null && (from | grep -v 'FOLDER INTERNAL DATA' | /usr/bin/mail -s Summary yourself@gmail.com) 

wytten / gist:3d8e86728c2c12f6cfe6fd83d5d8be68

Created September 11, 2017 20:39

Setting environments variables on MacOS 10.12 (Sierra)

	PATH:
	A. bash - Edit /etc/paths
	B. apps - sudo launchctl config user path $PATH
	OTHER:
	https://diaryproducts.net/EnvPane

wytten / gist:56c44d494b6a33868ee4dff1f4cfe665

Created September 5, 2017 15:25

xpath to report maven project version as parsed from pom.xml

	public static void main(String[] args) throws Exception {
	String uri = "pom.xml";
	if (args.length > 0) {
	uri = args[0];
	}
	String path = "/project/version/text()";
	if (args.length > 1) {
	path = args[1];
	}
	if (!path.startsWith("/")) {

wytten / Bash functions to play built-in .wav files on windows

Created May 10, 2016 23:08

	function play {
	local wav=`cygpath -W`/Media/$1.wav
	if [ -f "$wav" ]; then
	cp "$wav" /dev/dsp
	else
	echo "$wav" not found
	fi
	}

	function tada {

wytten / remote git pull using bash functions

Created May 10, 2016 22:59

	function devssh
	{
	for i in nova regal saab paxton; do
	ssh $i "$@"
	done
	}

	function devpull
	{
	devssh "(cd weblogic; git pull)"

wytten / gist:84a0a13547d697afb0059904cea02558

Last active May 11, 2016 15:23

Count log events per hour using awk, for a log file containing messages prefixed with date and time e.g., '2016-04-18 02:03:07'

$awk -F: '/logMessageOfInterest/ {counts[$1] = counts[$1] + 1; } END { for (val in counts) print val, counts[val]; }' LOG.TXT | sort

wytten / Class.java

Created May 7, 2014 15:47

This is the method invoked by java.lang.Class.getResourceAsStream()...See the comment, I don't think it is intuitive behavior

	/**
	* Add a package name prefix if the name is not absolute Remove leading "/"
	* if name is absolute
	*/
	private String resolveName(String name) {
	...
	}

wytten / GroovySystemTest.java

Last active August 29, 2015 14:00

Locate all the groovy scripts in a certain package within the classpath, and execute them as a JUnit 4.x test suite

	@RunWith(Parameterized.class)
	public class GroovySystemTest {

	@Parameters(name = "{0}")
	public static Collection<Object[]> data() throws Exception {
	Collection<Object[]> data = new ArrayList<Object[]>();

	ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(true);
	provider.addIncludeFilter(new AssignableTypeFilter(Script.class));

Dale Wyttenbach wytten