Record Case Detail - VE482 FA2022 (Manuel) - JOJ

This function is in beta test. Please help improve it in the issues here.

 pwd: /out/package
ppid: 73646
   1: WRITELN echo 123 > 1.txt
   2: WRITELN cat > 2.txt < 1.txt
   3: WRITELN cat 1.txt
   4: WRITELN cat 2.txt
   5: WRITELN ls
   6: 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 $ echo 123 > 1.txt输出重定向指令输入有误!mumsh $ cat > 2.txt < 1.txt输出重定向指令输入有误!mumsh $ cat: 1.txt: No such file or directory
cat 1.txtError: Operation not permitted
mumsh $ cat: 2.txt: No such file or directory
cat 2.txtError: Operation not permitted
mumsh $ driver
mumsh
mumsh_memory_check
lsmumsh $ exitexit

mumsh $ mumsh $ mumsh $ 123
mumsh $ 123
mumsh $ 1.txt
2.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit