Exclude lines with directory path

Hello, I have a TXT file that contains the following example data:

./aa ./bb/data ./cc/files/docs

I need to remove all lines from it that contain subdirectories. So in the example above, only the first line should remain. Do you know how to do this in Linux console?


Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Accepted Answer


If I get this correctly, you want to have only the base directories without the subdirectories. This could be achieved with awk:

cat old.txt  | awk -F'/' '{ print $2 }' | sort | uniq



Regards, Bobby

Sure. This might not be the best solution, but it is one that will work!

Setting up my test:

➜  ~ mkdir test3
➜  ~ cd test3
➜  test3 mkdir -p aa bb/data cc/files/docs

testing my solution:

➜  test3 for i in $(find . -type d -links 2|sed -e 's/\.//g'); do dirs=$(basename $i); clean_i=$(echo $i|sed -e 's/\///g'); if [[ "$dirs" == "$clean_i" ]]; then; echo $clean_i;fi;done

again, I’m sure there is something simpler out there, but this does do the job.


for i in $(find . -type d -links 2|sed -e 's/\.//g'); do
  dirs=$(basename $i)
  clean_i=$(echo $i|sed -e 's/\///g')
  if [[ "$dirs" == "$clean_i" ]]; then
    echo $clean_i

Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up

card icon
Get our biweekly newsletter

Sign up for Infrastructure as a Newsletter.

Sign up
card icon
Hollie's Hub for Good

Working on improving health and education, reducing inequality, and spurring economic growth? We’d like to help.

Learn more
card icon
Become a contributor

You get paid; we donate to tech nonprofits.

Learn more
Welcome to the developer cloud

DigitalOcean makes it simple to launch in the cloud and scale up as you grow – whether you’re running one virtual machine or ten thousand.

Learn more ->
DigitalOcean Cloud Control Panel
Get started for free

Enter your email to get $200 in credit for your first 60 days with DigitalOcean.

New accounts only. By submitting your email you agree to our Privacy Policy.