-bash-4.3$ ./counts
This time I am typing in the text directly. On the next run I will
use the redirection arrow to redirect sample.txt instead. Here I
must enter ctrl-D (after a newline) to end the input. Here I go:
Code	Char	Count
----	----	-----
 10	LF	    3
 32	SPC	   35
 40	(	    1
 41	)	    1
 45	-	    1
 46	.	    4
 58	:	    1
 68	D	    1
 72	H	    2
 73	I	    4
 79	O	    1
 84	T	    1
 97	a	    6
 99	c	    4
100	d	    5
101	e	   25
102	f	    1
103	g	    2
104	h	    5
105	i	   12
108	l	    6
109	m	    4
110	n	   12
111	o	    5
112	p	    3
114	r	   13
115	s	    5
116	t	   22
117	u	    4
119	w	    3
120	x	    3
121	y	    2
		-----
Total		  197
-bash-4.3$ ./counts < sample.txt
Code	Char	Count
----	----	-----
 10	LF	   21
 32	SPC	  194
 34	"	    2
 38	&	    1
 39	'	    5
 44	,	   14
 45	-	    3
 46	.	   22
 48	0	    2
 50	2	    1
 54	6	    1
 58	:	    3
 65	A	    3
 67	C	    3
 71	G	    1
 72	H	    1
 73	I	   13
 78	N	    2
 79	O	    1
 80	P	    1
 83	S	    1
 84	T	    2
 87	W	    4
 89	Y	    1
 97	a	   61
 98	b	    6
 99	c	   26
100	d	   30
101	e	  101
102	f	   10
103	g	   21
104	h	   33
105	i	   46
106	j	    4
107	k	    8
108	l	   35
109	m	   21
110	n	   61
111	o	   78
112	p	   22
113	q	    1
114	r	   45
115	s	   40
116	t	   95
117	u	   30
118	v	    9
119	w	   17
121	y	   20
122	z	    2
		-----
Total		 1124