如何使用 Linux 命令 Sort 根据第 4 列数字顺序对文本文件进行排序？
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how to use Linux command Sort to sort the text file according to 4th column, numeric order?
提问by mahmood
I have a file like this(which is space delimited):
我有一个这样的文件（用空格分隔）：
AX-18 Chr1_419085 1 41908545 T C -1 98 0.51
AX-19 Chr1_419087 1 41908740 T C 0 15 0.067
AX-20 Chr1_419087 1 41908741 T C 0 13 0.067
and I want to use sortcommand to sort the file according to 4th column. I looked it up everywhere on internet and I find different solutions which nun works!! I even find similar question in stackoverflow which the answer didn't work for me! so these are the commands that I'm using and are not working!
我想使用sort命令根据第 4 列对文件进行排序。我在互联网上到处查找，我发现修女工作的不同解决方案！！我什至在 stackoverflow 中发现了类似的问题，但答案对我不起作用！所以这些是我正在使用但不起作用的命令！
sort -n -k 4,1 out1.txt
sort -n -k 4 out1.txt
sort -n -k4 out1.txt
sort -nk4 out1.txt
sort +4 out1.txt
so after running all these commands I get this output( which is identical to my input):
所以在运行所有这些命令后，我得到了这个输出（与我的输入相同）：
AX-18 Chr1_419085 1 41908545 T C -1 98 0.51
AX-19 Chr1_419087 1 41908740 T C 0 15 0.067
AX-20 Chr1_419087 1 41908741 T C 0 13 0.067
I want to get an output like this:
我想得到这样的输出：
AX-19 Chr1_419087 1 41908741 T C 0 15 0.067
AX-20 Chr1_419087 1 41908740 T C 0 13 0.067
AX-18 Chr1_419085 1 41908545 T C -1 98 0.51
采纳答案by jaypal singh
sort -nk4 file
-n for numerical sort
-k for providing key
or add -r optionfor reverse sorting
或添加-r option反向排序
sort -nrk4 file
回答by sehe
It should be
它应该是
sort -k 4n out1.txt
Just tested this with GNU sort (--debug enabled):
刚刚用 GNU sort (--debug enabled) 测试了这个：
$ tac input | /bin/sort --debug -k 4n
/bin/sort: using simple byte comparison
/bin/sort: key 1 is numeric and spans multiple fields
AX-18 Chr1_419085 1 41908545 T C -1 98 0.51
________
___________________________________________
AX-19 Chr1_419087 1 41908740 T C 0 15 0.067
________
___________________________________________
AX-20 Chr1_419087 1 41908741 T C 0 13 0.067
________
___________________________________________
回答by Joni
sortdoes not sort the file in-place. It outputs a sorted copy instead.
sort不会就地对文件进行排序。它输出一个排序的副本。
You need sort -n -k 4 out.txt > sorted-out.txt.
你需要sort -n -k 4 out.txt > sorted-out.txt.
Edit:To get the order you want you have to sort the file with the numbers read in reverse. This does it:
编辑：要获得您想要的顺序，您必须使用反向读取的数字对文件进行排序。这样做：
cut -d' ' -f4 out.txt | rev | paste - out.txt | sort -k1 -n | cut -f2- > sorted-out.txt
cut -d' ' -f4 out.txt | rev | paste - out.txt | sort -k1 -n | cut -f2- > sorted-out.txt
回答by Malgi
It is helpful to mention that if the words in each line of file is separated by delimiter except ‘space', then we can specify delimiter using “-t” option:
值得一提的是，如果文件的每一行中的单词除 'space' 之外都由分隔符分隔，那么我们可以使用“-t”选项指定分隔符：
sort -n -t',' -k4 file -o outfile
We can get sorted output in any specified output file (using “-o” option) instead of displaying output on standard output.
我们可以在任何指定的输出文件中获得排序输出（使用“-o”选项），而不是在标准输出上显示输出。
