Compare two files and get only missing names

Shell Programming and Scripting
1

I need to compare two files (oldfile1 & newfile). Need to ignore the values which are present in both files. At the same time, i need to get only records in new file.

Tried using Join -v1 -v2 oldfile1 newfile (suspect it has not worked as expected).

could anyone of you please help me here.

2

Show us your input and expected o/p. We will help you

3

Oldfile

LONDON
HUNGARY
Budapest
california

Newfile

HUNGARY
california
North carolina
India
LONDON
Budapest
Switzerland

Output should be:

North carolina
India
Switzerland
4

Please use codetag

try

$ grep -v -f oldfile  newfile

OR

$ awk 'FNR==NR{A[$0]++;next}!($0 in A)' oldfile newfile

Resulting

North carolina
India
Switzerland
5

yeah.. thank you so much, itworked...

6

You could also use comm command if your files were sorted or you could do something like this to sort them first. Note your output would also be sorted.

comm -23 <(sort newfile) <(sort oldfile)

India
North carolina
Switzerland