Record Case Detail

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 pwd: /out/package
ppid: 82793
   1: WRITELN echo 123 > 1.txt
   2: WRITELN echo "<1.'txt'
   3: WRITELN " < 1.txt >> 2."'txt'"
   4: WRITELN cat 1.txt
   5: WRITELN cat 2."'txt'"
   6: WRITELN ls
   7: WRITELN exit

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.

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

mumsh $ mumsh $ > mumsh $ 123
mumsh $ <1.'txt'

mumsh $ 1.txt
2.'txt'
driver
mumsh
mumsh_memory_check
mumsh $ exit
AddressSanitizer:DEADLYSIGNAL
=================================================================
==82794==ERROR: AddressSanitizer: SEGV on unknown address 0x000000533570 (pc 0x000000428213 bp 0x7ffe5432b650 sp 0x7ffe5432b600 T0)
==82794==The signal is caused by a WRITE memory access.
    #0 0x428212  (/out/package/mumsh_memory_check+0x428212)
    #1 0x4dc9ca  (/out/package/mumsh_memory_check+0x4dc9ca)
    #2 0x5170aa  (/out/package/mumsh_memory_check+0x5170aa)
    #3 0x51b9dc  (/out/package/mumsh_memory_check+0x51b9dc)
    #4 0x7f7e6c052b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #5 0x41cd09  (/out/package/mumsh_memory_check+0x41cd09)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/mumsh_memory_check+0x428212) 
==82794==ABORTING

mumsh $ mumsh $ > mumsh $ 123
mumsh $ <1.'txt'

mumsh $ 1.txt
2.'txt'
driver
mumsh
mumsh_memory_check
mumsh $ exit

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