(command.CommandList
  children: [
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'*** CLEAN BEGIN ***'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'Cleaning up the main work area. This may take a while...'>)}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <rm>
      more_env: []
      words: [{<rm>} {<-rf>} {<work>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <mkdir>
      more_env: []
      words: [{<mkdir>} {<work>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <mkdir>
      more_env: []
      words: [{<mkdir>} {<-p>} {<source>}]
      redirects: []
      do_fork: T
    )
    (command.Simple
      blame_tok: <echo>
      more_env: []
      words: [{<echo>} {(DQ <'*** CLEAN END ***'>)}]
      redirects: []
      do_fork: T
    )
  ]
)