jakekara

/* 
 * sig.c - examining the return value of the signal function
 *
 * The signal function returns the pointer to the previous
 * handler for the signal.
 */

#include <stdio.h>		/* for printf */
#include <signal.h>		/* for signal */
#include <stdlib.h> 		/* for exit */

jakekara

/*
 * determine a file's size with stat
 */

#include <sys/stat.h> 		/* for stat */
#include <stdio.h>		/* for printf */

int main(int ac, char *av[])
{
  if ( ac < 2 ) return 0;

jakekara

# ============================================
#
# netyet.sh - Announce, in English, when your
#             Internet connection is working
#
# You could also use:
#
#     ping -i 60 -a 8.8.8.8
#
# which will just ring the terminal bell once

jakekara

# usage: ./appicon-resize.sh ORIGINAL_PNG.png

ORIG=$1

function resize {
    convert $ORIG -resize $1 $(echo $ORIG | sed -e "s/.png/-$1.png/g")
}

resize 1024
resize 167

jakekara

#
# get unemployment rates for CT and US
# Jake Kara, December 2017
#

# get unemployment rate CSV because these excel links:
# http://www1.ctdol.state.ct.us/lmi/unemploymentrate.asp
# seem to work in non-IE browsers or pandas/requests lib

jakekara

/********************************************************
 * ipclass.c 
 * 
 * Demonstrate that the first significant bits
 * can be used to determine the address class 
 * 
 * 
 * https://en.wikipedia.org/wiki/Classful_network
 *******************************************************/
#include <stdio.h>

jakekara

// Unix File Permissions - List all possible file permissions
// Written to teach myself structs and enums in Swift
// Jake Kara, September 2017

enum Permission:Int{
    
    case None = 0
    case Execute, // 1
    Write, // 2
    ExecuteWrite, // 1 + 2 = 3

jakekara

""" 
    usage: python mine_demo.py ZEROES VALUE_TO_HASH

    Find a nonce that, when concatenated  with VALUE_TO_HASH, results in an 
    SHA256 hexdigest that starts with ZEROES number of zeroes.

    output: NONCE HASH

    Where NONCE is the solution that resulted in a HASH that the required 
    number of zeroes at the start.

jakekara

#!/usr/bin/env sh

# nagsite.sh - ping a site until it comes back online

RET_VAL=1;

#
# checksite - Check if a site is online
#      args - url to ping
#   returns - no returns, but modifies RET_VAL

jakekara

#!/usr/bin/env sh

#
# clean-mess.sh - Convert a SQL text output to CSV, for when 
# someone sends you SQL text output of a table instead of a CSV...
#
# Beware, this will not properly handle double spaces in a column
# because that wasn't an issue for the data I received.
#
# In this case, it just does every .mess file in a folder called data