正确的使用coreutils加入和排序 [英] Correct usage for coreutils join and sort
问题描述
我试图使用标准的命令行工具 join
来连接两个文件。根据文档,两个输入文件需要为此排序。最初,我只是通过 sort
来实现这一点,但是这仍然导致错误,如join:file 2不是按排序顺序。然后我仔细研究了一下,发现我应该使用 sort -k 1b,1
,但是这似乎没有帮助。我甚至玩的地方(设置 LANG = C
或 LANG = EN_en
),但似乎没有工作。 / p>
到目前为止我试过:
-
cat x |排序| join -j 1 a -
-
cat x |排序-k1b,1 | join -j 1 a -
-
cat x | LANG = C sort -k1b,1 | join -j 1 a -
-
cat x | LANG = EN_en sort -k1b,1 | join -j 1 a -
那么,如何在未排序的文件上正确使用连接? p>
基本上:
join <(sort file1)<(sort file2)
I am trying to use the standard command-line tool join
to join two files. According to the documentation, both input files need to be sorted for this. Initially I just piped them through sort
to achieve this, but this still resulted in errors like "join: file 2 is not in sorted order". I then looked into this a bit more closely and found that I was supposed to use sort -k 1b,1
, but that didn't seem to help either. I even played around with the locales (setting LANG=C
or LANG=EN_en
) but nothing seems to work.
So far I tried:
cat x | sort | join -j 1 a -
cat x | sort -k1b,1 | join -j 1 a -
cat x | LANG=C sort -k1b,1 | join -j 1 a -
cat x | LANG=EN_en sort -k1b,1 | join -j 1 a -
So, how do I use join correctly on unsorted files?
Basically :
join <(sort file1) <(sort file2)
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