fish-shell-pure, 231 bytes

Result

WA

Duration

876ms

Code [DL]

sed -E 's/11 ./11 1/g'|sed -E 's/22 ./22 2/g'|sed -E 's/33 ./33 3/g'|sed -E 's/44 ./44 4/g'|sed -E 's/55 ./55 5/g'|sed -E 's/66 ./66 6/g'|sed -E 's/77 ./77 7/g'|sed -E 's/88 ./88 8/g'|sed -E 's/99 ./99 9/g'|sed -E 's/.* (.).*/\1/g'

stdin

871 771
322 621
576 677
343 554
166 663
175 552
448 543
448 889
765 541
884 184
831 314
147 477
589 981
688 922
144 449
144 667
695 157
782 237
788 835
788 824
692 116
219 337
456 135
623 216
566 224
527 221
622 625
182 129
941 491
492 785
944 868
332 362

stdout

stderr

/code.fish (line 1): 
sed -E 's/11 ./11 1/g'|sed -E 's/22 ./22 2/g'|sed -E 's/33 ./33 3/g'|sed -E 's/44 ./44 4/g'|sed -E 's/55 ./55 5/g'|sed -E 's/66 ./66 6/g'|sed -E 's/77 ./77 7/g'|sed -E 's/88 ./88 8/g'|sed -E 's/99 ./99 9/g'|sed -E 's/.* (.).*/\1/g'
^

strace

14    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdeaed9760 /* 9 vars */) = 0
15    execve("/usr/bin/realpath", ["realpath", "/volume/CODE"], 0x56069eff8d18 /* 9 vars */) = 0
15    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
16    execve("/bin/cp", ["cp", "-f", "/volume/CODE", "/opt/jails/fish-shell-pure/code."...], 0x56069eff8d68 /* 9 vars */) = 0
16    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
17    execve("/bin/cat", ["cat", "-"], 0x5606a03b70e0 /* 9 vars */) = 0
18    execve("/usr/sbin/jk_chrootlaunch", ["jk_chrootlaunch", "-j", "/opt/jails/fish-shell-pure", "-x", "/bin/fish", "/code.fish"], 0x5606a03b71b0 /* 9 vars */ <unfinished ...>
17    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
18    <... execve resumed>)             = 0
18    execve("/bin/fish", ["/bin/fish", "/code.fish"], 0x7ffdfc5d4ab0 /* 9 vars */) = 0
18    +++ exited with 127 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=127, si_utime=0, si_stime=0} ---
19    execve("/bin/rm", ["rm", "/opt/jails/fish-shell-pure/code."...], 0x56069eff8cc8 /* 9 vars */) = 0
19    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
14    +++ exited with 0 +++