pwd: /out/package
ppid: 17116
   1: WRITELN echo 321 >> 1.txt
   2: WRITELN cat 1.txt
   3: WRITELN ls
   4: WRITELN exit

mumsh $ mumsh $ 321
mumsh $ 1.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit 

mumsh $ mumsh $ 321
mumsh $ 1.txt
driver
mumsh
mumsh_memory_check
mumsh $ exit