seantrane

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

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Color Configuration for ls (LS_COLORS)

TLDR: lscolors generator tool: [http://geoff.greer.fm/lscolors/]

LSCOLORS

The value of this variable describes what color to use for which attribute when colors are enabled with CLICOLOR. This string is a concatenation of pairs of the format fb, where f is the foreground color and b is the background color.

The color designators are as follows:

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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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#!/usr/bin/env bash
#
# This is a modification from https://gist.github.com/omegahm/28d87a4e1411c030aa89
# Colours and convention picked from https://robinpowered.com/blog/best-practice-system-for-organizing-and-tagging-github-issues/
# 
# Instructions
# Bash 4+ is needed because of associative arrays
# jq (https://stedolan.github.io/jq/)
# Create access Token from Github (https://help.github.com/articles/creating-an-access-token-for-command-line-use/) and save it under ".token" file
# Comment / Uncomment / Add, all the labels you want

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There are two types of markup in Liquid: Output and Tag.

• Output markup (which may resolve to text) is surrounded by

{{ matched pairs of curly brackets (ie, braces) }}

• Tag markup (which cannot resolve to text) is surrounded by