Tom Saleeba tomsaleeba

Assume have a directory of files in an Angular.io project. We need to clone them all but rename and do a find+replace in them to work with another model name. The old model is plot and the new model is photo.

Clone the directory and contents
```
cp -r plot photo
cd photo
```
create a script to receive the results from our find:

blah.sh

I learned this when trying to clear our records in AWS Neptune. I was hitting the query timeout when trying to drop an entire graph. If you don't want to/can't raise the timeout, you can drop smaller parts of the graph in each transaction.

curl -sX POST http://<cluster-prefix>.rds.amazonaws.com:8182/sparql --data-urlencode 'update=
DELETE {
  GRAPH <http://aws.amazon.com/neptune/vocab/v01/DefaultNamedGraph> { ?s ?p ?o }
}
WHERE {
  GRAPH <http://aws.amazon.com/neptune/vocab/v01/DefaultNamedGraph> {
 {

ttlcat

When you have a series of *.ttl files in a directory and you want to cat them all together, you need to make sure you strip out the @prefix and only prepend it once to the output.

Use the following commands

# run *in* the directory with the TTL files
head -n 50 -q *.ttl | grep '^@prefix' | sort -u > header
time cat *.ttl | grep -v '^@prefix' | cat header - | gzip > $(basename $(pwd)).ttl.gz
rm header

Keybase proof

I hereby claim:

I am tomsaleeba on github.
I am tomsaleeba (https://keybase.io/tomsaleeba) on keybase.
I have a public key ASCQLgwf5nOen0sIm5tyL5yq_ZO2slYSfrfH69tm02Y91go

To claim this, I am signing this object:

	// direct as promise
	;(function () {
	const prefix = '[direct-promise level]'
	async function direct () {
	throw new Error(`${prefix} explosion`)
	}

	direct().then(() => {
	console.log(`${prefix} success`)
	}).catch(err => {

	#!/usr/bin/env bash
	# short demo on how to wait for multiple jobs
	echo 'start'
	sleep 2 &
	job1=$!
	echo "do things that don't require job 1 output"
	sleep 4 &
	job2=$!
	echo "do things that don't require job 2 output"
	wait $job1