pwd: /out/package
ppid: 13670
   1: WRITELN echo 123 > 1.txt
   2: WRITELN echo abc > > > >
   3: WRITELN echo abc > < 1.txt
   4: WRITELN echo abc > | grep abc
   5: WRITELN exit

mumsh $ mumsh $ syntax error near unexpected token `>'
mumsh $ syntax error near unexpected token `<'
mumsh $ syntax error near unexpected token `|'
mumsh $ exit

=================================================================
==13671==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 3072 byte(s) in 3 object(s) allocated from:
    #0 0x4dce50  (/out/package/mumsh_memory_check+0x4dce50)
    #1 0x516e07  (/out/package/mumsh_memory_check+0x516e07)
    #2 0x522a79  (/out/package/mumsh_memory_check+0x522a79)
    #3 0x7f85ececdb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

Direct leak of 2048 byte(s) in 2 object(s) allocated from:
    #0 0x4dce50  (/out/package/mumsh_memory_check+0x4dce50)
    #1 0x516df7  (/out/package/mumsh_memory_check+0x516df7)
    #2 0x522a79  (/out/package/mumsh_memory_check+0x522a79)
    #3 0x7f85ececdb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 5120 byte(s) leaked in 5 allocation(s).

mumsh $ mumsh $ syntax error near unexpected token `>'
mumsh $ syntax error near unexpected token `<'
mumsh $ syntax error near unexpected token `|'
mumsh $ exit