(command.CommandList children: [ (command.ShAssignment pairs: [ (assign_pair lhs: (sh_lhs_expr.Name name:tempfile) op: assign_op.Equal rhs: {(DQ (/tmp/available.) ($ Id.VSub_Dollar '$$'))} spids: [11] ) ] ) (C {(trap)} {(DQ ('rm -f ') ($ Id.VSub_DollarName '$tempfile'))} {(EXIT)}) (command.Simple words: [{(cat)}] redirects: [ (redir.HereDoc op: (Token id:Id.Redir_DLess val:'<<' span_id:30) fd: -1 here_begin: {(SQ (Token id:Id.Lit_Chars val:EOF span_id:33))} here_end_span_id: 45 stdin_parts: [ (' { sum += $4 }\n') ('END { mb = sum / 1024\n') (' gb = mb / 1024\n') (' printf "%.0f MB (%.2fGB) of available disk space\\n", mb, gb\n') (' }\n') ] ) (redir.Redir op: (Token id:Id.Redir_Great val:'>' span_id:36) fd: -1 arg_word: {($ Id.VSub_DollarName '$tempfile')} ) ] ) (command.Pipeline children: [(C {(df)} {(-k)}) (C {(awk)} {(-f)} {($ Id.VSub_DollarName '$tempfile')})] negated: F ) (command.ControlFlow token:(Token id:Id.ControlFlow_Exit val:exit span_id:60) arg_word:{(0)}) ] )