From 068591cd8ef929afa39a5dc737a7d4cfa104b2f5 Mon Sep 17 00:00:00 2001
From: Intel A80486DX2-66 <larry.holst@disroot.org>
Date: Mon, 15 Jul 2024 00:03:15 +0300
Subject: [PATCH] relicense everything under CC0-1.0 or Unlicense, add SPDX ID

---
 c-programming/benchmarking/clock_hr_microsec.c          | 3 ++-
 c-programming/benchmarking/clock_hr_microsec.h          | 3 ++-
 c-programming/experiments/bool-operations.c             | 3 ++-
 c-programming/experiments/clock-malfunction-imitation.c | 3 ++-
 c-programming/experiments/floatscan-experiment.c        | 3 ++-
 c-programming/experiments/reverse-ramdisk.c             | 3 ++-
 c-programming/experiments/static-vs-dynamic-mem-alloc.c | 3 ++-
 c-programming/io/freadln.c                              | 3 ++-
 c-programming/io/freadln.h                              | 3 ++-
 c-programming/io/fwrite_le.c                            | 3 ++-
 c-programming/io/fwrite_le.h                            | 3 ++-
 c-programming/io/pure_getline.c                         | 3 ++-
 c-programming/io/pure_getline.h                         | 3 ++-
 c-programming/jokes/brexit.c                            | 3 ++-
 c-programming/jokes/bytebeat-cryptic.c                  | 3 ++-
 c-programming/jokes/extol.c                             | 3 ++-
 c-programming/jokes/extol.modern.c                      | 3 ++-
 c-programming/math/be_to_le_ptr.h                       | 3 ++-
 c-programming/math/opt_int_div.h                        | 3 ++-
 c-programming/math/opt_int_div.test.c                   | 3 ++-
 c-programming/mem/safe_mem.h                            | 3 ++-
 c-programming/mem/safe_mem.test.c                       | 3 ++-
 c-programming/strings/asprintf.c                        | 3 ++-
 c-programming/strings/asprintf.h                        | 3 ++-
 c-programming/strings/portable_basename.c               | 3 ++-
 c-programming/strings/portable_basename.h               | 3 ++-
 c-programming/strings/portable_basename.test.c          | 3 ++-
 c-programming/strings/str_replace.c                     | 3 ++-
 c-programming/strings/str_replace.h                     | 3 ++-
 c-programming/strings/string_case.c                     | 3 ++-
 c-programming/strings/string_case.h                     | 3 ++-
 c-programming/sys/cpuid_vendor_id.mod.c                 | 3 ++-
 js-programming/busy-loop-delay.js                       | 3 ++-
 js-programming/bytebeat-render.js                       | 3 ++-
 python-programming/BB_plus_watch_temp_files.py          | 3 ++-
 python-programming/generate_C_lang_token.py             | 3 ++-
 python-programming/git_commit_simulator.py              | 3 ++-
 python-programming/oneliners/ASCII_to_CJK.py            | 3 ++-
 python-programming/oneliners/base64_text_decode.py      | 3 ++-
 python-programming/oneliners/get_unix_epoch_seconds.py  | 3 ++-
 python-programming/year_2038_bug.py                     | 3 ++-
 41 files changed, 82 insertions(+), 41 deletions(-)

diff --git a/c-programming/benchmarking/clock_hr_microsec.c b/c-programming/benchmarking/clock_hr_microsec.c
index 4384a95..74ddc00 100644
--- a/c-programming/benchmarking/clock_hr_microsec.c
+++ b/c-programming/benchmarking/clock_hr_microsec.c
@@ -6,7 +6,8 @@
  * TODO: Use fixed point arithmetics
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "clock_hr_microsec.h"
diff --git a/c-programming/benchmarking/clock_hr_microsec.h b/c-programming/benchmarking/clock_hr_microsec.h
index e389545..a5c26f6 100644
--- a/c-programming/benchmarking/clock_hr_microsec.h
+++ b/c-programming/benchmarking/clock_hr_microsec.h
@@ -2,7 +2,8 @@
  * clock_hr_microsec.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _CLOCK_HR_MICROSEC_H
diff --git a/c-programming/experiments/bool-operations.c b/c-programming/experiments/bool-operations.c
index f99a71d..8cabb2d 100644
--- a/c-programming/experiments/bool-operations.c
+++ b/c-programming/experiments/bool-operations.c
@@ -2,7 +2,8 @@
  * bool-operations.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <inttypes.h>
diff --git a/c-programming/experiments/clock-malfunction-imitation.c b/c-programming/experiments/clock-malfunction-imitation.c
index 6566626..ecbd981 100644
--- a/c-programming/experiments/clock-malfunction-imitation.c
+++ b/c-programming/experiments/clock-malfunction-imitation.c
@@ -9,7 +9,8 @@
  * - exponential growth of time
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <limits.h>
diff --git a/c-programming/experiments/floatscan-experiment.c b/c-programming/experiments/floatscan-experiment.c
index 09a4c97..66e71ab 100644
--- a/c-programming/experiments/floatscan-experiment.c
+++ b/c-programming/experiments/floatscan-experiment.c
@@ -32,7 +32,8 @@
  *
  * The license information of the added code and this modification:
  *     Author: Intel A80486DX2-66
- *     License: Unlicense
+ *     License: Creative Commons Zero 1.0 Universal or Unlicense
+ *     SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <ctype.h>
diff --git a/c-programming/experiments/reverse-ramdisk.c b/c-programming/experiments/reverse-ramdisk.c
index 0649f3d..97f0b60 100644
--- a/c-programming/experiments/reverse-ramdisk.c
+++ b/c-programming/experiments/reverse-ramdisk.c
@@ -23,7 +23,8 @@
  * TODO: Test: Automate the test verification
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <errno.h>
diff --git a/c-programming/experiments/static-vs-dynamic-mem-alloc.c b/c-programming/experiments/static-vs-dynamic-mem-alloc.c
index ce23101..bb7c6e9 100644
--- a/c-programming/experiments/static-vs-dynamic-mem-alloc.c
+++ b/c-programming/experiments/static-vs-dynamic-mem-alloc.c
@@ -2,7 +2,8 @@
  * static-vs-dynamic-mem-alloc.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <stdint.h>
diff --git a/c-programming/io/freadln.c b/c-programming/io/freadln.c
index c172d29..d6b0b6f 100644
--- a/c-programming/io/freadln.c
+++ b/c-programming/io/freadln.c
@@ -14,7 +14,8 @@
  * the input reading loop to avoid input queues
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "freadln.h"
diff --git a/c-programming/io/freadln.h b/c-programming/io/freadln.h
index 8883f69..6449fb4 100644
--- a/c-programming/io/freadln.h
+++ b/c-programming/io/freadln.h
@@ -2,7 +2,8 @@
  * freadln.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _FREADLN_H
diff --git a/c-programming/io/fwrite_le.c b/c-programming/io/fwrite_le.c
index f21120a..2bcb0d4 100644
--- a/c-programming/io/fwrite_le.c
+++ b/c-programming/io/fwrite_le.c
@@ -2,7 +2,8 @@
  * fwrite_le.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "fwrite_le.h"
diff --git a/c-programming/io/fwrite_le.h b/c-programming/io/fwrite_le.h
index da215aa..7816426 100644
--- a/c-programming/io/fwrite_le.h
+++ b/c-programming/io/fwrite_le.h
@@ -2,7 +2,8 @@
  * fwrite_le.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _FWRITE_LE_H
diff --git a/c-programming/io/pure_getline.c b/c-programming/io/pure_getline.c
index bb6dccf..4c6fdd3 100644
--- a/c-programming/io/pure_getline.c
+++ b/c-programming/io/pure_getline.c
@@ -2,7 +2,8 @@
  * pure_getline.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "pure_getline.h"
diff --git a/c-programming/io/pure_getline.h b/c-programming/io/pure_getline.h
index 2e84676..c7abbcb 100644
--- a/c-programming/io/pure_getline.h
+++ b/c-programming/io/pure_getline.h
@@ -2,7 +2,8 @@
  * pure_getline.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _PURE_GETLINE_H
diff --git a/c-programming/jokes/brexit.c b/c-programming/jokes/brexit.c
index 894fc50..4cb91f4 100644
--- a/c-programming/jokes/brexit.c
+++ b/c-programming/jokes/brexit.c
@@ -2,7 +2,8 @@
  * brexit.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #if !(defined(unix) || defined(__unix) || defined(__unix__) || \
diff --git a/c-programming/jokes/bytebeat-cryptic.c b/c-programming/jokes/bytebeat-cryptic.c
index 796439b..3c55384 100644
--- a/c-programming/jokes/bytebeat-cryptic.c
+++ b/c-programming/jokes/bytebeat-cryptic.c
@@ -4,7 +4,8 @@
  * NOTE: PulseAudio: Pipe STDOUT of this program to aplay -c 1 -f U8 -r 44100
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <stdio.h>
diff --git a/c-programming/jokes/extol.c b/c-programming/jokes/extol.c
index eec69f8..7d6dabd 100644
--- a/c-programming/jokes/extol.c
+++ b/c-programming/jokes/extol.c
@@ -2,7 +2,8 @@
  * extol.c [joke!]
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <stdbool.h>
diff --git a/c-programming/jokes/extol.modern.c b/c-programming/jokes/extol.modern.c
index 6843a4d..c3c5bd2 100644
--- a/c-programming/jokes/extol.modern.c
+++ b/c-programming/jokes/extol.modern.c
@@ -4,7 +4,8 @@
  * A modern C version of extol.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <stdbool.h>
diff --git a/c-programming/math/be_to_le_ptr.h b/c-programming/math/be_to_le_ptr.h
index ee0b296..01468fc 100644
--- a/c-programming/math/be_to_le_ptr.h
+++ b/c-programming/math/be_to_le_ptr.h
@@ -4,7 +4,8 @@
  * Useful for showing big-endian hexadecimal dumps on little-endian machines
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #define BE_TO_LE_PTR(base, size, i)                                           \
diff --git a/c-programming/math/opt_int_div.h b/c-programming/math/opt_int_div.h
index fc8d1e1..e7b54eb 100644
--- a/c-programming/math/opt_int_div.h
+++ b/c-programming/math/opt_int_div.h
@@ -6,7 +6,8 @@
  * NOTE: This code will work only on a computer that uses bits.
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _OPT_INT_DIV_H
diff --git a/c-programming/math/opt_int_div.test.c b/c-programming/math/opt_int_div.test.c
index 400e714..40e0c1c 100644
--- a/c-programming/math/opt_int_div.test.c
+++ b/c-programming/math/opt_int_div.test.c
@@ -4,7 +4,8 @@
  * "Optimized integer division"
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "opt_int_div.h"
diff --git a/c-programming/mem/safe_mem.h b/c-programming/mem/safe_mem.h
index 33412b8..a7e0817 100644
--- a/c-programming/mem/safe_mem.h
+++ b/c-programming/mem/safe_mem.h
@@ -10,7 +10,8 @@
  * f=lib/memset_explicit.c;hb=refs/heads/stable-202301
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _SAFE_MEM_H
diff --git a/c-programming/mem/safe_mem.test.c b/c-programming/mem/safe_mem.test.c
index 337ab38..600483b 100644
--- a/c-programming/mem/safe_mem.test.c
+++ b/c-programming/mem/safe_mem.test.c
@@ -2,7 +2,8 @@
  * safe_mem.test.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <stdio.h>
diff --git a/c-programming/strings/asprintf.c b/c-programming/strings/asprintf.c
index f8d4acf..bf1c908 100644
--- a/c-programming/strings/asprintf.c
+++ b/c-programming/strings/asprintf.c
@@ -2,7 +2,8 @@
  * asprintf.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "asprintf.h"
diff --git a/c-programming/strings/asprintf.h b/c-programming/strings/asprintf.h
index 813614c..b34e48e 100644
--- a/c-programming/strings/asprintf.h
+++ b/c-programming/strings/asprintf.h
@@ -2,7 +2,8 @@
  * asprintf.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _ASPRINTF_H
diff --git a/c-programming/strings/portable_basename.c b/c-programming/strings/portable_basename.c
index b05656d..89284b3 100644
--- a/c-programming/strings/portable_basename.c
+++ b/c-programming/strings/portable_basename.c
@@ -2,7 +2,8 @@
  * portable_basename.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "portable_basename.h"
diff --git a/c-programming/strings/portable_basename.h b/c-programming/strings/portable_basename.h
index 2a326e9..b059271 100644
--- a/c-programming/strings/portable_basename.h
+++ b/c-programming/strings/portable_basename.h
@@ -2,7 +2,8 @@
  * portable_basename.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _PORTABLE_BASENAME_H
diff --git a/c-programming/strings/portable_basename.test.c b/c-programming/strings/portable_basename.test.c
index f11da70..00c77e7 100644
--- a/c-programming/strings/portable_basename.test.c
+++ b/c-programming/strings/portable_basename.test.c
@@ -4,7 +4,8 @@
  * Also compile `portable_basename.c` and `../benchmarking/clock_hr_microsec.c`
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include <inttypes.h>
diff --git a/c-programming/strings/str_replace.c b/c-programming/strings/str_replace.c
index 934a34c..a9e5fdd 100644
--- a/c-programming/strings/str_replace.c
+++ b/c-programming/strings/str_replace.c
@@ -4,7 +4,8 @@
  * TODO: Add the ability to replace from the end
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "str_replace.h"
diff --git a/c-programming/strings/str_replace.h b/c-programming/strings/str_replace.h
index 60b5201..97bfbe9 100644
--- a/c-programming/strings/str_replace.h
+++ b/c-programming/strings/str_replace.h
@@ -2,7 +2,8 @@
  * str_replace.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _STR_REPLACE_H
diff --git a/c-programming/strings/string_case.c b/c-programming/strings/string_case.c
index de5b756..faae163 100644
--- a/c-programming/strings/string_case.c
+++ b/c-programming/strings/string_case.c
@@ -2,7 +2,8 @@
  * string_case.c
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #include "string_case.h"
diff --git a/c-programming/strings/string_case.h b/c-programming/strings/string_case.h
index be6ba74..ef63dca 100644
--- a/c-programming/strings/string_case.h
+++ b/c-programming/strings/string_case.h
@@ -2,7 +2,8 @@
  * string_case.h
  *
  * Author: Intel A80486DX2-66
- * License: Unlicense
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #ifndef _STRING_CASE_H
diff --git a/c-programming/sys/cpuid_vendor_id.mod.c b/c-programming/sys/cpuid_vendor_id.mod.c
index de45efb..11a1473 100644
--- a/c-programming/sys/cpuid_vendor_id.mod.c
+++ b/c-programming/sys/cpuid_vendor_id.mod.c
@@ -7,7 +7,8 @@
  *
  * The following license information applies for the modifications:
  *     Author: Intel A80486DX2-66
- *     License: Unlicense
+ *     License: Creative Commons Zero 1.0 Universal or Unlicense
+ *     SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 #if !(defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || \
diff --git a/js-programming/busy-loop-delay.js b/js-programming/busy-loop-delay.js
index df199b5..265a8c3 100644
--- a/js-programming/busy-loop-delay.js
+++ b/js-programming/busy-loop-delay.js
@@ -2,7 +2,8 @@
  * busy-loop-delay.js
  *
  * Author: Intel A80486DX2-66
- * License: Creative Commons Zero 1.0 Universal
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 let measureEpoch = () => Number(new Date())
diff --git a/js-programming/bytebeat-render.js b/js-programming/bytebeat-render.js
index e6fa4f2..223c0e7 100644
--- a/js-programming/bytebeat-render.js
+++ b/js-programming/bytebeat-render.js
@@ -15,7 +15,8 @@
  * headers
  *
  * Author: Intel A80486DX2-66
- * License: Creative Commons Zero 1.0 Universal
+ * License: Creative Commons Zero 1.0 Universal or Unlicense
+ * SPDX-License-Identifier: CC0-1.0 OR Unlicense
  */
 
 const generateAudio = t => {
diff --git a/python-programming/BB_plus_watch_temp_files.py b/python-programming/BB_plus_watch_temp_files.py
index 29e0114..314049a 100644
--- a/python-programming/BB_plus_watch_temp_files.py
+++ b/python-programming/BB_plus_watch_temp_files.py
@@ -7,7 +7,8 @@
 # The video game Baldi's Basics Plus is created by Basically Games
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 from dotenv import load_dotenv
 from os import environ, listdir, makedirs
diff --git a/python-programming/generate_C_lang_token.py b/python-programming/generate_C_lang_token.py
index ba011ad..aaecc06 100644
--- a/python-programming/generate_C_lang_token.py
+++ b/python-programming/generate_C_lang_token.py
@@ -3,7 +3,8 @@
 # generate_C_lang_token.py
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 from random import choice
 from string import ascii_lowercase, ascii_uppercase, digits
diff --git a/python-programming/git_commit_simulator.py b/python-programming/git_commit_simulator.py
index 871f06a..d188108 100644
--- a/python-programming/git_commit_simulator.py
+++ b/python-programming/git_commit_simulator.py
@@ -5,7 +5,8 @@
 # TODO: Add interactive mode
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 from datetime import datetime
 from difflib import unified_diff
diff --git a/python-programming/oneliners/ASCII_to_CJK.py b/python-programming/oneliners/ASCII_to_CJK.py
index ca43917..0222d8b 100644
--- a/python-programming/oneliners/ASCII_to_CJK.py
+++ b/python-programming/oneliners/ASCII_to_CJK.py
@@ -3,7 +3,8 @@
 # ASCII_to_CJK.py
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 ASCII_to_CJK = {
     " ": "\u3000",
diff --git a/python-programming/oneliners/base64_text_decode.py b/python-programming/oneliners/base64_text_decode.py
index 3ea6201..cdcaf79 100644
--- a/python-programming/oneliners/base64_text_decode.py
+++ b/python-programming/oneliners/base64_text_decode.py
@@ -3,6 +3,7 @@
 # base64_text_decode.py
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 print(__import__("base64").b64decode(input()).decode())
diff --git a/python-programming/oneliners/get_unix_epoch_seconds.py b/python-programming/oneliners/get_unix_epoch_seconds.py
index a2a1788..fc823ae 100644
--- a/python-programming/oneliners/get_unix_epoch_seconds.py
+++ b/python-programming/oneliners/get_unix_epoch_seconds.py
@@ -3,7 +3,8 @@
 # get_unix_epoch_seconds.py
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 print(__import__("math").floor(__import__("datetime").datetime.now().\
                                timestamp()))
diff --git a/python-programming/year_2038_bug.py b/python-programming/year_2038_bug.py
index c53224d..50e7e1d 100644
--- a/python-programming/year_2038_bug.py
+++ b/python-programming/year_2038_bug.py
@@ -3,7 +3,8 @@
 # year_2038_bug.py
 #
 # Author: Intel A80486DX2-66
-# License: Unlicense
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
 
 from ctypes import c_int, sizeof
 from datetime import datetime, timedelta