How to compare two text files for the same exact text using BASH Script?-CodePudding

Let's say I have two text files that I need to extract data out of. The text of the two files is as follows:

File1.txt

ami-1234567
ami-1234567654
ami-23456

File-2.txt

ami-1234567654
ami-23456
ami-2345678965

I want all the data of file2.txt which looks same from file1.txt.

CodePudding user response：

Did you try join?

join -o 0 File1.txt File2.txt

ami-1234567654
ami-23456

remark: For join to work correctly, it needs your files to be sorted, which seems to be the case here.

CodePudding user response：

I don`t know if I proper understand You:

but You can Try sort this files (after extract):

 sort file1 > file1.sorted
 sort file2 > file2.sorted