pwd: /out/package
ppid: 56
   1: WRITELN > abc | | grep 123
   2: WRITELN exit

mumsh $ error: missing program
mumsh $ exit

=================================================================
==57==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 6144 byte(s) in 6 object(s) allocated from:
    #0 0x4dd210  (/out/package/mumsh_memory_check+0x4dd210)
    #1 0x5165f8  (/out/package/mumsh_memory_check+0x5165f8)
    #2 0x7f160ecc9b96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)

SUMMARY: AddressSanitizer: 6144 byte(s) leaked in 6 allocation(s).

mumsh $ error: missing program
mumsh $ exit