I’m trying to find the files existing in one directory but not in the other, I tried to use this command:
diff -q dir1 dir2
The problem with the above command that it finds both the files in dir1
but not in dir2
as well as the files in dir2
but not in dir1
,
I am trying to find the files in dir1
but not in dir2
only.
Here’s a small sample of what my data looks like
dir1 dir2 dir3 1.txt 1.txt 1.txt 2.txt 3.txt 3.txt 5.txt 4.txt 5.txt 6.txt 7.txt 8.txt
Another question on my mind is how can I find the files in dir1
but not in dir2
or dir3
in a single command?
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Answer
diff -r dir1 dir2 | grep dir1 | awk '{print $4}' > difference1.txt
Explanation:
diff -r dir1 dir2
shows which files are only in dir1 and those only in dir2 and also the changes of the files present in both directories if any.diff -r dir1 dir2 | grep dir1
shows which files are only in dir1awk
to print only filename.