Record Case Detail - VE482 FA2018 (Manuel) - JOJ

This function is in beta test. Please help improve it in the issues here.

 pwd: /out/package
ppid: 9835
   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

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