pwd: /out/package
ppid: 14421
   1: WRITELN > abc | | grep 123
   2: WRITELN exit

mumsh $ error: missing program
mumsh $ exit

=================================================================
==14422==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 16384 byte(s) in 1 object(s) allocated from:
    #0 0x4dce50  (/out/package/mumsh_memory_check+0x4dce50)
    #1 0x516050  (/out/package/mumsh_memory_check+0x516050)
    #2 0x51a2d3  (/out/package/mumsh_memory_check+0x51a2d3)
    #3 0x522b26  (/out/package/mumsh_memory_check+0x522b26)
    #4 0x7fe187067b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

Indirect leak of 8192 byte(s) in 1 object(s) allocated from:
    #0 0x4dce50  (/out/package/mumsh_memory_check+0x4dce50)
    #1 0x516a1c  (/out/package/mumsh_memory_check+0x516a1c)
    #2 0x51a2d3  (/out/package/mumsh_memory_check+0x51a2d3)
    #3 0x522b26  (/out/package/mumsh_memory_check+0x522b26)
    #4 0x7fe187067b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 24576 byte(s) leaked in 2 allocation(s).

mumsh $ error: missing program
mumsh $ exit