execve("/bin/true", ["true"], 0x7ffd8b34aae0 /* 10 vars */) = 0
brk(NULL)                               = 0x5623f4f45000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=15274, ...}) = 0
mmap(NULL, 15274, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7f8b2d9f4000
close(4)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 4
read(4, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260A\2\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0755, st_size=1820400, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8b2d9f2000
mmap(NULL, 1832960, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x7f8b2d832000
mprotect(0x7f8b2d854000, 1654784, PROT_NONE) = 0
mmap(0x7f8b2d854000, 1339392, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x22000) = 0x7f8b2d854000
mmap(0x7f8b2d99b000, 311296, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x169000) = 0x7f8b2d99b000
mmap(0x7f8b2d9e8000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1b5000) = 0x7f8b2d9e8000
mmap(0x7f8b2d9ee000, 14336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f8b2d9ee000
close(4)                                = 0
arch_prctl(ARCH_SET_FS, 0x7f8b2d9f3540) = 0
mprotect(0x7f8b2d9e8000, 16384, PROT_READ) = 0
mprotect(0x5623f459d000, 4096, PROT_READ) = 0
mprotect(0x7f8b2da1f000, 4096, PROT_READ) = 0
munmap(0x7f8b2d9f4000, 15274)           = 0
exit_group(0)                           = ?
+++ exited with 0 +++

===
01     echo hi

--- dash
hi
--- bash
hi
--- mksh
hi
--- zsh
hi
--- ash
hi
--- yash
hi
--- osh
hi

===
02     date

--- dash
Mon Jul  1 02:20:17 UTC 2024
--- bash
Mon Jul  1 02:20:17 UTC 2024
--- mksh
Mon Jul  1 02:20:17 UTC 2024
--- zsh
Mon Jul  1 02:20:17 UTC 2024
--- ash
Mon Jul  1 02:20:17 UTC 2024
--- yash
Mon Jul  1 02:20:17 UTC 2024
--- osh
Mon Jul  1 02:20:17 UTC 2024

===
03     date ;

--- dash
Mon Jul  1 02:20:17 UTC 2024
--- bash
Mon Jul  1 02:20:17 UTC 2024
--- mksh
Mon Jul  1 02:20:17 UTC 2024
--- zsh
Mon Jul  1 02:20:17 UTC 2024
--- ash
Mon Jul  1 02:20:17 UTC 2024
--- yash
Mon Jul  1 02:20:17 UTC 2024
--- osh
Mon Jul  1 02:20:18 UTC 2024

===
04     date; echo hi

--- dash
Mon Jul  1 02:20:18 UTC 2024
hi
--- bash
Mon Jul  1 02:20:18 UTC 2024
hi
--- mksh
Mon Jul  1 02:20:18 UTC 2024
hi
--- zsh
Mon Jul  1 02:20:18 UTC 2024
hi
--- ash
Mon Jul  1 02:20:18 UTC 2024
hi
--- yash
Mon Jul  1 02:20:18 UTC 2024
hi
--- osh
Mon Jul  1 02:20:18 UTC 2024
hi

===
05     echo hi; date

--- dash
hi
Mon Jul  1 02:20:18 UTC 2024
--- bash
hi
Mon Jul  1 02:20:18 UTC 2024
--- mksh
hi
Mon Jul  1 02:20:18 UTC 2024
--- zsh
hi
Mon Jul  1 02:20:18 UTC 2024
--- ash
hi
Mon Jul  1 02:20:18 UTC 2024
--- yash
hi
Mon Jul  1 02:20:18 UTC 2024
--- osh
hi
Mon Jul  1 02:20:18 UTC 2024

===
06     date; date

--- dash
Mon Jul  1 02:20:18 UTC 2024
Mon Jul  1 02:20:18 UTC 2024
--- bash
Mon Jul  1 02:20:18 UTC 2024
Mon Jul  1 02:20:18 UTC 2024
--- mksh
Mon Jul  1 02:20:18 UTC 2024
Mon Jul  1 02:20:18 UTC 2024
--- zsh
Mon Jul  1 02:20:18 UTC 2024
Mon Jul  1 02:20:18 UTC 2024
--- ash
Mon Jul  1 02:20:18 UTC 2024
Mon Jul  1 02:20:18 UTC 2024
--- yash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- osh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024

===
07     { date; date; }

--- dash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- bash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- mksh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- zsh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- ash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- yash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- osh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024

===
08     date; { date; }

--- dash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- bash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- mksh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- zsh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- ash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- yash
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024
--- osh
Mon Jul  1 02:20:19 UTC 2024
Mon Jul  1 02:20:19 UTC 2024

===
09     . _tmp/sourced.sh

--- dash
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- bash
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- mksh
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- zsh
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- ash
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- yash
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024
--- osh
Mon Jul  1 02:20:20 UTC 2024
Mon Jul  1 02:20:20 UTC 2024

===
10     (echo hi)

--- dash
hi
--- bash
hi
--- mksh
hi
--- zsh
hi
--- ash
hi
--- yash
hi
--- osh
hi

===
11     (date)

--- dash
Mon Jul  1 02:20:20 UTC 2024
--- bash
Mon Jul  1 02:20:20 UTC 2024
--- mksh
Mon Jul  1 02:20:20 UTC 2024
--- zsh
Mon Jul  1 02:20:20 UTC 2024
--- ash
Mon Jul  1 02:20:20 UTC 2024
--- yash
Mon Jul  1 02:20:20 UTC 2024
--- osh
Mon Jul  1 02:20:21 UTC 2024

===
12     ( ( date ) )

--- dash
Mon Jul  1 02:20:21 UTC 2024
--- bash
Mon Jul  1 02:20:21 UTC 2024
--- mksh
Mon Jul  1 02:20:21 UTC 2024
--- zsh
Mon Jul  1 02:20:21 UTC 2024
--- ash
Mon Jul  1 02:20:21 UTC 2024
--- yash
Mon Jul  1 02:20:21 UTC 2024
--- osh
Mon Jul  1 02:20:21 UTC 2024

===
13     ( ( date ) ); echo hi

--- dash
Mon Jul  1 02:20:21 UTC 2024
hi
--- bash
Mon Jul  1 02:20:21 UTC 2024
hi
--- mksh
Mon Jul  1 02:20:21 UTC 2024
hi
--- zsh
Mon Jul  1 02:20:21 UTC 2024
hi
--- ash
Mon Jul  1 02:20:21 UTC 2024
hi
--- yash
Mon Jul  1 02:20:21 UTC 2024
hi
--- osh
Mon Jul  1 02:20:21 UTC 2024
hi

===
14     echo hi; (date)

--- dash
hi
Mon Jul  1 02:20:21 UTC 2024
--- bash
hi
Mon Jul  1 02:20:21 UTC 2024
--- mksh
hi
Mon Jul  1 02:20:21 UTC 2024
--- zsh
hi
Mon Jul  1 02:20:21 UTC 2024
--- ash
hi
Mon Jul  1 02:20:21 UTC 2024
--- yash
hi
Mon Jul  1 02:20:21 UTC 2024
--- osh
hi
Mon Jul  1 02:20:22 UTC 2024

===
15     (date;) > /tmp/out.txt

--- dash
--- bash
--- mksh
--- zsh
--- ash
--- yash
--- osh

===
16     (date; echo hi)

--- dash
Mon Jul  1 02:20:22 UTC 2024
hi
--- bash
Mon Jul  1 02:20:22 UTC 2024
hi
--- mksh
Mon Jul  1 02:20:22 UTC 2024
hi
--- zsh
Mon Jul  1 02:20:22 UTC 2024
hi
--- ash
Mon Jul  1 02:20:22 UTC 2024
hi
--- yash
Mon Jul  1 02:20:22 UTC 2024
hi
--- osh
Mon Jul  1 02:20:22 UTC 2024
hi

===
17     echo $(date)

--- dash
Mon Jul 1 02:20:22 UTC 2024
--- bash
Mon Jul 1 02:20:22 UTC 2024
--- mksh
Mon Jul 1 02:20:22 UTC 2024
--- zsh
Mon Jul 1 02:20:22 UTC 2024
--- ash
Mon Jul 1 02:20:22 UTC 2024
--- yash
Mon Jul 1 02:20:22 UTC 2024
--- osh
Mon Jul 1 02:20:23 UTC 2024

===
18     echo $(echo hi)

--- dash
hi
--- bash
hi
--- mksh
hi
--- zsh
hi
--- ash
hi
--- yash
hi
--- osh
hi

===
19     echo $( ( date ) )

--- dash
Mon Jul 1 02:20:23 UTC 2024
--- bash
Mon Jul 1 02:20:23 UTC 2024
--- mksh
Mon Jul 1 02:20:23 UTC 2024
--- zsh
Mon Jul 1 02:20:23 UTC 2024
--- ash
Mon Jul 1 02:20:23 UTC 2024
--- yash
Mon Jul 1 02:20:23 UTC 2024
--- osh
Mon Jul 1 02:20:23 UTC 2024

===
20     echo $( ( date ); echo hi )

--- dash
Mon Jul 1 02:20:23 UTC 2024 hi
--- bash
Mon Jul 1 02:20:23 UTC 2024 hi
--- mksh
Mon Jul 1 02:20:23 UTC 2024 hi
--- zsh
Mon Jul 1 02:20:23 UTC 2024 hi
--- ash
Mon Jul 1 02:20:23 UTC 2024 hi
--- yash
Mon Jul 1 02:20:23 UTC 2024 hi
--- osh
Mon Jul 1 02:20:24 UTC 2024 hi

===
21     ( echo hi ); echo done

--- dash
hi
done
--- bash
hi
done
--- mksh
hi
done
--- zsh
hi
done
--- ash
hi
done
--- yash
hi
done
--- osh
hi
done

===
22     date | wc -l

--- dash
1
--- bash
1
--- mksh
1
--- zsh
1
--- ash
1
--- yash
1
--- osh
1

===
23     echo a | wc -l

--- dash
1
--- bash
1
--- mksh
1
--- zsh
1
--- ash
1
--- yash
1
--- osh
1

===
24     command echo a | wc -l

--- dash
1
--- bash
1
--- mksh
1
--- zsh
1
--- ash
1
--- yash
1
--- osh
1

===
25     command date | wc -l

--- dash
1
--- bash
1
--- mksh
1
--- zsh
1
--- ash
1
--- yash
1
--- osh
1

===
26     ( date ) | wc -l

--- dash
1
--- bash
1
--- mksh
1
--- zsh
1
--- ash
1
--- yash
1
--- osh
1

===
27     date | read x

--- dash
--- bash
--- mksh
--- zsh
--- ash
--- yash
--- osh

===
28     { echo a; echo b; } | wc -l

--- dash
2
--- bash
2
--- mksh
2
--- zsh
2
--- ash
2
--- yash
2
--- osh
2

===
29     { echo a; echo b; } | wc -l; echo done

--- dash
2
done
--- bash
2
done
--- mksh
2
done
--- zsh
2
done
--- ash
2
done
--- yash
2
done
--- osh
2
done

===
30     { echo a; date; } | wc -l

--- dash
2
--- bash
2
--- mksh
2
--- zsh
2
--- ash
2
--- yash
2
--- osh
2

===
31     ( echo a; echo b ) | wc -l

--- dash
2
--- bash
2
--- mksh
2
--- zsh
2
--- ash
2
--- yash
2
--- osh
2

===
32     ( echo a; echo b ) | ( wc -l )

--- dash
2
--- bash
2
--- mksh
2
--- zsh
2
--- ash
2
--- yash
2
--- osh
2
Wrote _tmp/syscall/by-code.txt
OK