使用Vim处理大文本时遇到的问题和解决方法

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#!/bin/sh

if [ "$#" -ne 3 ]; then
  echo "Usage: $0 hugeFilePath startLine endLine" >&2
  exit 1
fi

sed -n -e $2','$3'p' -e $3'q' $1 > hfnano_temporary_file
vim hfnano_temporary_file
(head -n `expr $2 - 1` $1; cat hfnano_temporary_file; sed -e '1,'$3'd' $1) > hfnano_temporary_file2
cat hfnano_temporary_file2 > $1
rm hfnano_temporary_file hfnano_temporary_file2