koonix

#!/bin/sh

# detect and show IP Address, MAC Address and OS of local network computers.
# requires nmap and ip(iproute2).

gateway=$(ip route); gateway=${gateway#*via }; gateway=${gateway%% *}
localip=$(ip route get 1); localip=${localip#*src }; localip=${localip%% *}
scan=$(sudo nmap -sT -n -O --host-timeout 1m "${gateway:?}"/24) || exit 1

printf '%s\n' "${scan:?}" | while IFS= read -r line; do case $line in 'Nmap scan report for '*)

koonix

#!/bin/sh

# burn a file or an iso to a dvd.
# requires the cdrtools package.
# usage: $ burn FILE [TITLE]

# config
speed=1 # leave blank for default speed
dev=/dev/sr0
tmp=~/.cache/burn

koonix

#!/bin/bash
# winetricks, but for Bottles (https://github.com/bottlesdevs/Bottles).

# config
d=~/.local/share/bottles

set -e
cd ${d:?}/bottles
b=$(printf '%s\n' * | fzf)
r=$(grep '^Runner:' $b/bottle.yml | cut -d' ' -f2)

koonix

#!/bin/sh

# check #!/bin/sh-shebanged scripts in /usr/bin for
# dash-incompatible syntax using shellcheck.

# config
outdir=~/bashisms
searchdir=/usr/bin

mkdir -p "$outdir" || exit 1

koonix

#!/bin/zsh

# a wrapper for rm to make it safer to use.
# it stops rm from recursively removing top-level directories.

unset recursive endopt

# check arguments
for arg; do case $arg in
    --) break ;;

koonix

void
pushincol(const Arg *arg)
{
	Client *sel = selmon->sel, *c;

	if (!sel || sel->isfloating)
		return;

	if (arg->i > 0) {
		if ((c = nextofmodeloop(sel))) {

koonix

#include <stdio.h>
#include <glob.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

#define LENGTH(X) (sizeof(X) / sizeof(X[0]))

void getproccwd(const unsigned int pid, char *cwd, const unsigned int size);
void getdesc(const unsigned int pid, int *desc, const unsigned int size);

koonix

/* source: https://legacy.imagemagick.org/discourse-server/viewtopic.php?p=80803#p80803
 * requires the "opencl-headers" package
 * compile:
 *   cc ConvertExample.c -o convert $(pkg-config --libs --cflags MagickCore MagickWand) */

/*
   Bare minimal test of a direct call to ConvertImageCommand()
   Actually this is basically what the "convert" command does.

   Compile with...

koonix

/* source: https://stackoverflow.com/questions/29977651/how-can-the-pulseaudio-asynchronous-library-be-used-to-play-raw-pcm-data#29980624
 * pcm-playback: pcm-playback.c
 * gcc -o pcm-playback pcm-playback.c `pkg-config --cflags --libs libpulse` */

#include <stdio.h>
#include <assert.h>
#include <pulse/pulseaudio.h>

#define FORMAT PA_SAMPLE_U8
#define RATE 44100

koonix

#!/bin/sh -efu
# split the given video/audio files by chapters using ffmpeg.

for file; do
    ffprobe -print_format csv -show_chapters -- "$file" | cut -d, -f5,7,8 |
        while IFS=, read start end chapter; do
            ffmpeg -hide_banner -nostdin -ss "$start" -to "$end" -i "$file" \
                -c copy -map 0 -map_chapters -1 -- "${file%.*}-$chapter.${file##*.}"
        done
done