01	echo hi
02	date
03	date ;
04	trap 'echo mytrap' EXIT; date
05	date; echo hi
06	echo hi; date
07	date; date
08	{ date; date; }
09	date; { date; }
10	. _tmp/sourced.sh
11	(echo hi)
12	(date)
13	( ( date ) )
14	( ( date ) ); echo hi
15	echo hi; (date)
16	(date;) > /tmp/out.txt
17	(date; echo hi)
18	echo $(date)
19	echo $(echo hi)
20	echo $( ( date ) )
21	echo $( ( date ); echo hi )
22	( echo hi ); echo done
23	date | wc -l
24	! date | wc -l
25	echo a | wc -l
26	command echo a | wc -l
27	command date | wc -l
28	! command date | wc -l
29	( date ) | wc -l
30	date | read x
31	{ echo a; echo b; } | wc -l
32	{ echo a; echo b; } | wc -l; echo done
33	{ echo a; date; } | wc -l
34	( echo a; echo b ) | wc -l
35	( echo a; echo b ) | ( wc -l )
36	echo hi & wait
37	date & wait
38	echo hi | wc -l & wait
39	date | wc -l & wait
40	trap 'echo mytrap' EXIT; date & wait
41	trap 'echo mytrap' EXIT; date | wc -l & wait
42	{ trap 'echo mytrap' EXIT; date; } & wait