Deleting files with same using shell script

Question

Im totally newbie in shell script. Im need compare file name in two directories and delete files with same name.

EG:

Directory1/
one
two
three
four

Directory2/
two
four
five

After run script the directories will be:

Directory1/
one
three

Diretory2/
five

Thanks

I've tried diff Directory1/ Directory2/ but it shows me singular files in each directory and not yhe duplicate files. — walves
– walves, Commented Nov 24, 2011 at 23:41
You just need to delete files with same name? Different files can have same names. Correct approach would be to use cksum or md5 to identify if the files are indeed duplicates. — jaypal singh
– jaypal singh, Commented Nov 25, 2011 at 0:34
only same name its allright. the content its not important in my case. thaks. — walves
– walves, Commented Nov 25, 2011 at 1:36

user unknown · Accepted Answer · 2011-11-25 00:07:11Z

3

test -f tests if a file exists:

cd dir1
for file in *
do
    test -f ../dir2/$file && rm $file ../dir2/$file
done
cd ..

answered Nov 25, 2011 at 0:07

user unknown

36.4k12 gold badges77 silver badges123 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

sehe · Accepted Answer · 2011-11-24 23:45:39Z

2

Quick and dirty:

while read fname
do 
    rm -vf Directory{1,2}/"$fname"
done < <(sort 
              <(cd Directory1/ && ls) 
              <(cd Directory2/ && ls) | 
         uniq -d)

This assumes a number of things about the filenames, but it should get you there with the input shown, and similar cases.

Tested too, now:

mkdir /tmp/stacko && cd /tmp/stacko
mkdir Directory{1,2}
touch Directory1/{one,two,three,four} Directory2/{two,four,five}

Runnning the command shows:

removed `Directory1/four'
removed `Directory2/four'
removed `Directory1/two'
removed `Directory2/two'

And the resulting tree is:

Directory1/one
Directory1/three

Directory2/five

edited Nov 24, 2011 at 23:45

answered Nov 24, 2011 at 23:39

sehe

400k49 gold badges475 silver badges673 bronze badges

2 Comments

walves Over a year ago

why double less than is used < < ?

sehe Over a year ago

< means input redirection, <(cmd) means process substitution (open the output of a command like a file(descriptor)); < <(cmd) therefore redirects input from a pseudo-file (pipe) that represents the output of cmd.

Collectives™ on Stack Overflow

Deleting files with same using shell script

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related