Get permissions state of file or folder

ls –l myfile_name

The 3 values are shown in this order: Owner, group and others

Altering permissions

Set all permissions
sudo chmod 644 myfile_name
Add an individual permission
sudo chmod +rw myfile_name
sudo chmod g+rw myfile_name
sudo chmod o+rw myfile_name

(Example adds read and write permission for owner, group or others)

Remove an individual permission
sudo chmod -w myfile_name
sudo chmod g-w myfile_name
sudo chmod o-w myfile_name

(Example removes write permission for owner, group or others)

USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.

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