Number of Syscalls

ID	  dash	   ash	  mksh	bash-5	bash-4	   zsh	   ysh	   osh	Description
01	    40	    64	    59	   144	   156	   197	  4571	  4571	echo hi

02	    97	   122	   131	   231	   254	   277	  4637	  4637	date

03	    42	    66	    59	   145	   157	   192	  4571	  4571	date ;

04	    98	   123	   132	   269	   292	   284	  4639	  4639	trap 'echo mytrap' EXIT; date

05	    98	   123	   132	   233	   256	   281	  4639	  4639	date; echo hi

06	    98	   123	   132	   233	   256	   281	  4639	  4639	echo hi; date

07	   139	   166	   189	   292	   313	   345	  4690	  4690	date; date

08	   139	   166	   189	   292	   313	   346	  4690	  4690	{ date; date; }

09	   139	   166	   189	   292	   313	   346	  4690	  4690	date; { date; }

10	   149	   175	   198	   310	   331	   376	  4702	  4702	. _tmp/sourced.sh

11	    47	    72	    73	   174	   184	   230	  4588	  4588	(echo hi)

12	    97	   122	   133	   239	   262	   283	  4637	  4637	(date)

13	    97	   122	   133	   247	   270	   289	  4637	  4637	( ( date ) )

14	    98	   123	   134	   249	   272	   293	  4639	  4639	( ( date ) ); echo hi

15	    98	   123	   134	   241	   264	   287	  4639	  4639	echo hi; (date)

16	    98	   123	   134	   241	   264	   287	  4639	  4639	echo hi; (date;)

17	    48	    73	    74	   175	   185	   234	  4589	  4589	echo hi; (echo hi;)

18	    99	   124	   147	   242	   285	   291	  4640	  4640	echo hi; (echo hi; date)

19	    48	    73	    74	   176	   186	   234	  4590	  4590	( echo hi ); echo hi

20	   105	   128	   139	   234	   257	   280	  4646	  4646	date > /tmp/redir.txt

21	   100	   125	   141	   242	   265	   286	  4646	  4646	(date;) > /tmp/sentence.txt

22	   164	   187	   232	   321	   355	   366	  4719	  4719	date 2> /tmp/stderr.txt | wc -l

23	    48	    70	    66	   154	   166	   204	  4580	  4580	echo hi > /tmp/redir.txt

24	    50	    75	    81	   177	   187	   232	  4597	  4597	(echo hi;) > /tmp/sentence.txt

25	   116	   139	   174	   264	   285	   315	  4672	  4672	echo hi 2> /tmp/stderr.txt | wc -l

26	   105	   130	   146	   262	   284	   314	  4656	  4656	(date; echo hi)

27	   106	   131	   154	   250	   292	   296	  4644	  4644	echo $(date)

28	    55	    81	    93	   185	   194	   240	  4595	  4595	echo $(echo hi)

29	   106	   131	   154	   279	   300	   302	  4644	  4644	echo $( ( date ) )

30	   114	   140	   169	   282	   303	   331	  4664	  4664	echo $( ( date ); echo hi )

31	    48	    73	    74	   176	   186	   234	  4590	  4590	( echo hi ); echo done

32	   158	   183	   226	   318	   352	   363	  4712	  4712	date | wc -l

33	   158	   183	   226	   318	   352	   363	  4571	  4712	! date | wc -l

34	   108	   133	   167	   261	   282	   313	  4663	  4663	echo a | wc -l

35	   108	   133	   167	   261	   282	   356	  4663	  4663	command echo a | wc -l

36	   158	   183	   226	   318	   380	   363	  4712	  4712	command date | wc -l

37	   158	   183	   226	   318	   380	   363	  4571	  4712	! command date | wc -l

38	   158	   183	   227	   326	   360	   370	  4712	  4712	( date ) | wc -l

39	   141	   195	   200	   298	   318	   322	  4680	  4680	date | read x

40	   109	   134	   168	   262	   283	   319	  4664	  4664	{ echo a; echo b; } | wc -l

41	   110	   135	   169	   264	   285	   323	  4667	  4666	{ echo a; echo b; } | wc -l; echo done

42	   160	   185	   241	   350	   383	   376	  4715	  4714	{ echo a; date; } | wc -l

43	   109	   134	   168	   262	   283	   320	  4664	  4664	( echo a; echo b ) | wc -l

44	   109	   134	   168	   272	   293	   327	  4664	  4664	( echo a; echo b ) | ( wc -l )

45	   110	   135	   183	   302	   322	   338	  4665	  4665	{ echo prefix; ( echo a; echo b ); } | ( wc -l )

46	    54	    78	    82	   201	   210	   238	  4587	  4587	echo hi & wait

47	   104	   128	   142	   258	   280	   288	  4636	  4636	date & wait

48	   117	   140	   178	   287	   307	   330	  4655	  4655	echo hi | wc -l & wait

49	   168	   193	   237	   344	   377	   379	  4704	  4704	date | wc -l & wait

50	   105	   129	   143	   296	   318	   293	  4638	  4638	trap 'echo mytrap' EXIT; date & wait

51	   169	   190	   238	   398	   431	   384	  4706	  4706	trap 'echo mytrap' EXIT; date | wc -l & wait

52	   112	   136	   153	   326	   346	   323	  4653	  4653	{ trap 'echo mytrap' EXIT; date; } & wait

TOTAL	  5569	  6886	  8004	 13491	 14711	 15804	241621	241901