ericwastaken

#!/bin/bash

############################################################################
# Random Sample - rsample.sh
# 
# A utility to output a sample number of lines from 
# a text file based on a percentage passed in as an
# argument.
#
# Dependencies:

ericwastaken

GIT Cheat Sheet

This is a sheet with some interesting GIT commands.

License

This content is shared under a Creative Commons Attribution-ShareAlike 4.0 International.

Git History

ericwastaken

#!/bin/bash

################################################################
# This is a script that pulls a list of IPs from AWS
# published IP list, then parses it looking for a 
# specific region and service.
#
# Dependencies:
# This script needs:
#   * Internet access

ericwastaken

#!/bin/bash

echo "Say something here to confirm some action."
echo ""
# Wait for the user to press any KEY to proceed or allow them to Ctrl+C
read -n1 -rsp $'Press any key to continue or Ctrl+C to exit...\n'

# Do your work after this... it won't execute if the user does Ctrl+C at the prompt!

ericwastaken

#!/bin/bash

# Get the directory where the script lives.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
# Setup a variable for easy reference to the pidfile
pidfile=${SCRIPT_DIR}/tunnel.pid

# Check for our pidfile, which we expect in order to be able to control the process
if [ ! -f $pidfile ]; then
  echo "Tunnel pidfile does not exist. Tunnel might not up or not known! Exiting!"

ericwastaken

#!/bin/bash

# Get the directory where the script lives.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
# Setup a variable for easy reference to the pidfile
pidfile=${SCRIPT_DIR}/tunnel.pid

# Check to see if there is a pidfile already...
if [ -f $pidfile ]; then
  # There is, so the tunnel might be up!

ericwastaken

/**
 * This is from many sources. Important points:
 * - A promise will immediately start resolving when created unless it’s in a function being passed around.
 * - Note the special syntax when adding promises to arrays to avoid having the Promise begin resolving.
 * - Note the various patterns, series and parallel, with concurrency control.
 *
 * This work is licensed under the MIT License as follows:
 *
 * Copyright 2018 E.A.Soto <easoto@iss-pr.com>
 *

ericwastaken

/**
 * Creates and returns a reference to a shared instance of log4js. Only a single instance is created
 * regardless of how many references are made.
 *
 * To set your desired log level, change the following line to suit your needs.
 * - `const config = { logLevel: 'debug' };`
 *
 * In another module or file that you wish to log, do the following:
 * - `const SharedLog = require('./path/to/SharedLog.js');`
 * - `const logger = SharedLog.getInstance().logger;`

ericwastaken

#!/bin/sh

# *********************************************************************
# script: filetopingreply
# summary: given a file path (assuming it has a host per line), uses 
#	   another script to get the IP for each host then tries 
#          an ICMP ping and returns those that reply
#	   NOTE: Backgrounds each PING to perform these faster!
# dependencies: filetoiplist (in same path as this script); grep
# by: e.a.soto, eric@issfl.com

ericwastaken

#!/bin/sh

# *********************************************************************
# script: gethostlist
# summary: given a passed URL, extracts all hosts and returns a list, 
#	   sorted and unique.
# dependencies: wget; grep
# by: e.a.soto, eric@issfl.com
# 
# history