Add octets script

Makefile

@@ -1,4 +1,5 @@
 CFLAGS = -Wall -Werror
+
 TARGETS += pmerge 
 TARGETS += puniq 
 TARGETS += hd 
@@ -9,11 +10,14 @@ TARGETS += pcat
 TARGETS += slice
 TARGETS += hex
 
+SCRIPTS += octets
+
 all: $(TARGETS)
 
-install: $(TARGETS)
+install: $(TARGETS) $(SCRIPTS)
 	install -d $(DESTDIR)$(PREFIX)/bin
 	install $(TARGETS) $(DESTDIR)$(PREFIX)/bin
+	install $(SCRIPTS) $(DESTDIR)$(PREFIX)/bin
 
 pmerge: pmerge.o pcap.o
 

README.md

@@ -141,6 +141,8 @@ In other words: you can feed `hex` output into `unhex` with no manipulations.
 
 	$ printf "hello\nworld\n" | hex
 	68 65 6c 6c 6f 0a 77 6f  72 6c 64 0a
+	$ printf A | hex
+	41
 
 
 ### pyesc: python escape input
@@ -152,3 +154,28 @@ and many other languages' string literals.
 
 	$ printf "hello\nworld\n" | pyesc
 	hello\nworld\n
+
+
+### octets: display all octets
+
+Shows all octets from `00` to `ff` in a hex dump.
+This is occasionally more helpful than `man ascii`.
+
+    $ octets 
+    00000000  00 01 02 03 04 05 06 07  08 09 0a 0b 0c 0d 0e 0f  ┆·☺☻♥♦♣♠•◘○◙♂♀♪♫☼┆
+    00000010  10 11 12 13 14 15 16 17  18 19 1a 1b 1c 1d 1e 1f  ┆►◄↕‼¶§▬↨↑↓→←∟↔▲▼┆
+    00000020  20 21 22 23 24 25 26 27  28 29 2a 2b 2c 2d 2e 2f  ┆ !"#$%&'()*+,-./┆
+    00000030  30 31 32 33 34 35 36 37  38 39 3a 3b 3c 3d 3e 3f  ┆0123456789:;<=>?┆
+    00000040  40 41 42 43 44 45 46 47  48 49 4a 4b 4c 4d 4e 4f  ┆@ABCDEFGHIJKLMNO┆
+    00000050  50 51 52 53 54 55 56 57  58 59 5a 5b 5c 5d 5e 5f  ┆PQRSTUVWXYZ[\]^_┆
+    00000060  60 61 62 63 64 65 66 67  68 69 6a 6b 6c 6d 6e 6f  ┆`abcdefghijklmno┆
+    00000070  70 71 72 73 74 75 76 77  78 79 7a 7b 7c 7d 7e 7f  ┆pqrstuvwxyz{|}~⌂┆
+    00000080  80 81 82 83 84 85 86 87  88 89 8a 8b 8c 8d 8e 8f  ┆ÇüéâäàåçêëèïîìÄÅ┆
+    00000090  90 91 92 93 94 95 96 97  98 99 9a 9b 9c 9d 9e 9f  ┆ÉæÆôöòûùÿÖÜ¢£¥€ƒ┆
+    000000a0  a0 a1 a2 a3 a4 a5 a6 a7  a8 a9 aa ab ac ad ae af  ┆áíóúñѪº½⅓¼⅕⅙⅛«»┆
+    000000b0  b0 b1 b2 b3 b4 b5 b6 b7  b8 b9 ba bb bc bd be bf  ┆░▒▓│┤╡╢╖╕╣║╗╝╜╛┐┆
+    000000c0  c0 c1 c2 c3 c4 c5 c6 c7  c8 c9 ca cb cc cd ce cf  ┆└┴┬├─┼╞╟╚╔╩╦╠═╬╧┆
+    000000d0  d0 d1 d2 d3 d4 d5 d6 d7  d8 d9 da db dc dd de df  ┆╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀┆
+    000000e0  e0 e1 e2 e3 e4 e5 e6 e7  e8 e9 ea eb ec ed ee ef  ┆αßΓπΣσµτΦΘΩδ∞φε∩┆
+    000000f0  f0 f1 f2 f3 f4 f5 f6 f7  f8 f9 fa fb fc fd fe ff  ┆⁰¹²³⁴⁵⁶⁷⁸⁹ⁱⁿ⁽⁼⁾¤┆
+    00000100