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              more_env: []
              words: [{<usage>}]
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          spids: [78 91]
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                      more_env: []
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                      do_fork: T
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      more_env: []
      words: [{<echo>} {(DQ <'Cache Root:      '> ($ Id.VSub_DollarName CACHE))}]
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                          (DQ 
                            (CommandSub
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                      redirects: []
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      more_env: []
      words: [{<echo>} {(DQ <'Repository Root: '> ($ Id.VSub_DollarName REPO))}]
      redirects: []
      do_fork: T
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      more_env: []
      words: [{<.>} {<'tools/modules/versions.sh'>}]
      redirects: []
      do_fork: T
    )
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                              more_env: []
                              words: [{<mktemp>} {<-d>}]
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                {<ERR>}
                {<INT>}
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              redirects: []
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            (command.Simple
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              more_env: []
              words: [{<cd>} {(DQ ($ Id.VSub_DollarName TMP))}]
              redirects: []
              do_fork: T
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              more_env: []
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              redirects: []
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            (command.Simple
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              more_env: []
              words: [{<tar>} {<xzf>} {(DQ ($ Id.VSub_DollarName NAME) <.tar.gz>)}]
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                  (DQ 
                    (CommandSub
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                          more_env: []
                          words: [{<dirname>} {(DQ ($ Id.VSub_DollarName LLVM))}]
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              do_fork: T
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              words: [{<mv>} {<llvm>} {(DQ ($ Id.VSub_DollarName LLVM))}]
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