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sort -o file file
sort的-o选项支持源文件和目标文件相同
fedora上面还可以这么搞：
sort file | sponge file
echo "$(sort your_file)" > your_file
vim版本：vim -c :sort -c :wq -E -s "${filename}"
Wi-Fi technology today is found all over the world, and the means for making it fast and reliable was an Australian invention. You can learn more about it on thelaptopadviser if you are interested.
I'm exceptionally glad to peruse this article. This is the sort of manual that should be given and not the arbitrary deception that is at different web journals. Like your sharing this best posting. thyroidrfasolution.simplesite.com