gs2, 27 bytes

Result

AC

Duration

1306ms

Code [DL]

00000000  2a 27 cd 40 21 cc 50 d0  0a ea d1 40 01 4b 3e ca  |*'.@[email protected]>.|
00000010  3c d0 01 54 3e d2 31 27  07 4b 32                 |<..T>.1'.K2|
0000001b

stdin

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stdout

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   KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffe19a9b4c0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55e51dcf4d60 /* 7 vars */ <unfinished ...>
12    execve("/usr/bin/python", ["/usr/bin/python", "/root/gs2.py", "/volume/CODE"], 0x55e51e48a068 /* 7 vars */ <unfinished ...>
11    <... execve resumed> )            = 0
12    <... execve resumed> )            = 0
11    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
12    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=7, si_stime=3} ---
10    +++ exited with 0 +++