pwd: /out/package
ppid: 251
   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

=================================================================
==252==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 17408 byte(s) in 17 object(s) allocated from:
    #0 0x4dd210  (/out/package/mumsh_memory_check+0x4dd210)
    #1 0x5165f8  (/out/package/mumsh_memory_check+0x5165f8)
    #2 0x7f75554feb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 17408 byte(s) leaked in 17 allocation(s).

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