ruby, 4 bytes

Result

INVALID

Duration

1266ms

Code [DL]

`dd`

stdin

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    K                                             

stdout

stderr

2+1 records in
2+1 records out

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdd90f5010 /* 9 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x556605f83d40 /* 9 vars */ <unfinished ...>
12    execve("/usr/local/ruby-2.6.3/bin/ruby", ["/usr/local/ruby-2.6.3/bin/ruby", "/volume/CODE"], 0x556605f83d60 /* 9 vars */ <unfinished ...>
11    <... 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    <... execve resumed> )            = 0
13    execve("/bin/dd", ["dd"], 0x5643044aed80 /* 9 vars */) = 0
13    +++ exited with 0 +++
12    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, 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=8, si_stime=3} ---
10    +++ exited with 0 +++