compare 2 file and print difference in the third file URG PLS

evvander · #1 (**permalink**) 09-24-2007

Hi
I have two files in unix. I need to compare two files and print the differed lines in other file

Eg
file1
1111
2222
3333
file2
1111
2222
3333
4444
5555

newfile
4444
5555

Thanks In advance

radoulov · #2 (**permalink**) 09-24-2007

Code:

comm -3 file1 file2>newfile

evvander · #3 (**permalink**) 09-24-2007

if I do this then extra space is getting added at begining of each line in new file

radoulov · #4 (**permalink**) 09-24-2007

Code:

printf "%s\n" $(comm -3 file1 file2)>newfile

If the words/lines contain spaces:

Code:

rm newfile&&comm -3 file1 file2|while read;do printf "%s\n" "$REPLY">>newfile;done

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