Number of Syscalls

ID	  dash	  yash	   ash	  mksh	bash-5	bash-4	   zsh	   osh		Description
01	    40	    49	    64	    59	   144	   156	   194	  5727		echo hi

02	    90	   100	   114	   117	   207	   232	   250	  4618		date

03	    90	   100	   114	   131	   207	   232	   250	  4618		date ;

04	    98	   116	   123	   132	   269	   292	   281	  4638		trap 'echo mytrap' EXIT; date

05	    98	   112	   123	   132	   233	   256	   278	  4644		date; echo hi

06	    91	   104	   115	   132	   209	   256	   254	  4626		echo hi; date

07	   132	   149	   158	   189	   268	   313	   318	  4671		date; date

08	   132	   149	   158	   189	   292	   313	   319	  4677		{ date; date; }

09	   132	   149	   158	   189	   292	   313	   319	  4677		date; { date; }

10	   149	   171	   175	   198	   310	   331	   373	  4707		. _tmp/sourced.sh

11	    40	    50	    64	    73	   174	   184	   203	  4570		(echo hi)

12	    90	   101	   114	   133	   239	   262	   256	  4618		(date)

13	    90	   102	   114	   133	   247	   270	   262	  4624		( ( date ) )

14	    98	   114	   123	   134	   249	   272	   290	  4638		( ( date ) ); echo hi

15	    91	   105	   115	   134	   241	   264	   260	  4626		echo hi; (date)

16	    91	   105	   115	   134	   241	   264	   260	  4626		echo hi; (date;)

17	    41	    53	    65	    74	   175	   185	   207	  4577		echo hi; (echo hi;)

18	    92	   108	   116	   147	   242	   285	   264	  4621		echo hi; (echo hi; date)

19	    48	    62	    73	    74	   176	   186	   231	  4589		( echo hi ); echo hi

20	    96	   105	   118	   139	   234	   257	   256	  4625		date > /tmp/redir.txt

21	    93	   119	   117	   141	   242	   265	   259	  4625		(date;) > /tmp/sentence.txt

22	   163	   167	   187	   231	   321	   355	   363	  4696		date 2> /tmp/stderr.txt | wc -l

23	    48	    57	    70	    66	   154	   166	   201	  4579		echo hi > /tmp/redir.txt

24	    43	    60	    67	    81	   177	   187	   205	  4579		(echo hi;) > /tmp/sentence.txt

25	   115	   119	   139	   174	   264	   285	   312	  4649		echo hi 2> /tmp/stderr.txt | wc -l

26	    98	   113	   123	   146	   262	   284	   287	  4644		(date; echo hi)

27	   106	   124	   131	   154	   250	   292	   293	  4649		echo $(date)

28	    55	    73	    81	    93	   185	   194	   237	  4600		echo $(echo hi)

29	   106	   125	   131	   154	   279	   300	   299	  4649		echo $( ( date ) )

30	   114	   138	   140	   169	   282	   303	   328	  4663		echo $( ( date ); echo hi )

31	    48	    62	    73	    74	   176	   186	   231	  4589		( echo hi ); echo done

32	   157	   162	   183	   226	   318	   352	   360	  4695		date | wc -l

33	   157	   178	   183	   226	   318	   352	   360	  4717		! date | wc -l

34	   107	   112	   133	   167	   261	   282	   310	  4646		echo a | wc -l

35	   107	   112	   133	   167	   261	   282	   353	  4640		command echo a | wc -l

36	   157	   170	   183	   226	   318	   380	   360	  4689		command date | wc -l

37	   157	   186	   183	   226	   318	   380	   360	  4711		! command date | wc -l

38	   157	   162	   183	   226	   326	   360	   367	  4695		( date ) | wc -l

39	   140	   171	   195	   200	   298	   318	   319	  4685		date | read x

40	   108	   115	   134	   168	   262	   283	   289	  4641		{ echo a; echo b; } | wc -l

41	   110	   132	   135	   169	   264	   285	   320	  4665		{ echo a; echo b; } | wc -l; echo done

42	   159	   167	   185	   241	   350	   383	   344	  4692		{ echo a; date; } | wc -l

43	   108	   115	   134	   168	   262	   283	   317	  4641		( echo a; echo b ) | wc -l

44	   108	   116	   134	   168	   272	   293	   324	  4641		( echo a; echo b ) | ( wc -l )

45	   109	   120	   135	   183	   302	   322	   303	  4642		{ echo prefix; ( echo a; echo b ); } | ( wc -l )

46	    54	    66	    78	    82	   201	   210	   233	  4592		echo hi & wait

47	   104	   117	   128	   142	   258	   280	   283	  4635		date & wait

48	   117	   137	   139	   178	   287	   307	   325	  4654		echo hi | wc -l & wait

49	   167	   188	   193	   237	   344	   377	   374	  4709		date | wc -l & wait

50	   105	   125	   129	   143	   296	   318	   290	  4637		trap 'echo mytrap' EXIT; date & wait

51	   168	   195	   190	   238	   398	   431	   381	  4705		trap 'echo mytrap' EXIT; date | wc -l & wait

52	   112	   133	   136	   153	   326	   346	   318	  4652		{ trap 'echo mytrap' EXIT; date; } & wait

TOTAL	  5486	  6240	  6804	  8060	 13481	 14764	 15230	242623