find the same content in the file

ust · 03-23-2005, 01:57 AM

I have two files ( eg. file1 and file2 ) , its contents are as below , I want to find out the same content ( same word ) in the two files , in the below example , the same content is "aaa" , could suggest how to do it ? thx in advance.

#vi file1
aaa
bbb
ccc
ddd

#vi file2
111
222
333
aaa

TigerOC · 03-23-2005, 02:16 AM

the command is find - check the switches with find --help or man find

veerain · 03-23-2005, 02:26 AM

Hi ust,
You can't use find to get same content. Instead you must use a gawk script to do the job. Make your own gawk script. Help at "info gawk"

My site Veera's

TigerOC · 03-23-2005, 02:53 AM

My apologies on find but you will find a neat little app at;

http://plagiarism.phys.virginia.edu/software.html

druuna · 03-23-2005, 02:58 AM

Hi,

Won't this do:

Code:

for THIS in `cat file1 | grep -v '#'`
do
grep $THIS file2
done

Or as 'oneliner':

for THIS in `cat file1 | grep -v '#'`; do grep $THIS file2 ; done

Will need some work if the inputlines have 'funny' characters.

Hope this helps.

prasanta · 03-23-2005, 03:03 AM

#comm -1 -2 file1 file2
provided the files are sorted.

-Prasanta