Record Case Detail

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 pwd: /out/package
ppid: 5553
   1: WRITELN "echo" "123
   2: WRITELN |" |
   3: WRITELN cat > 1.txt
   4: WRITELN cat 1.txt
   5: WRITELN ls
exit: 1

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

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

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

=================================================================
==5555==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 0x7f3f83b05b96  (/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 0x7f3f83b05b96  (/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 $ 
=================================================================
==5554==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 0x517c

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

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