Record Case Detail

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 pwd: /out/package
ppid: 33886
   1: WRITELN "echo" "123
   2: WRITELN |" |
   3: WRITELN cat > 1.txt
   4: WRITELN cat 1.txt
   5: WRITELN ls

Your answer may be identical to the JOJ answer in the first several lines.

However, you will still get Wrong Answer because the complete output may be longer and there might be errors in the future lines.

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mumsh $ > > > cat: cat: No such file or directory

=================================================================
==33888==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 11 byte(s) in 2 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x517ced  (/out/package/mumsh_memory_check+0x517ced)
    #2 0x7f9066bd3b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

Direct leak of 2 byte(s) in 1 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x5179e1  (/out/package/mumsh_memory_check+0x5179e1)
    #2 0x7f9066bd3b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 13 byte(s) leaked in 3 allocation(s).
mumsh $ 1.txt
driver
mumsh
mumsh_memory_check
mumsh $ 
=================================================================
==33887==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 11 byte(s) in 2 object(s) allocated from:
    #0 0x4dca80  (/out/package/mumsh_memory_check+0x4dca80)
    #1 0x51

mumsh $ > > mumsh $ 123
|
mumsh $ 1.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit

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