What does file permission 755 mean?

0 votes

I am going through a demo that asked me to change the file permission to 755. I did it by using this command:

chmod 755 filename

I am new to Linux, I know the binary format of chmod But I am not understanding what does 755 set the permission to. Please explain

Dec 21, 2018 in Linux Administration by slayer
• 29,300 points
62,902 views

1 answer to this question.

0 votes

777 permission on the directory means that everyone has access to read/write/execute (execute on a directory means that you can do an ls of the directory).

755 means read and execute access for everyone and also write access for the owner of the file. When you perform chmod 755 filename command you allow everyone to read and execute the file, the owner is allowed to write to the file as well. So, there should be no permission to everyone else other than the owner to write to the file, 755 permission is required.

answered Dec 21, 2018 by Omkar
• 69,030 points

Related Questions In Linux Administration

0 votes
1 answer

What does “sudo echo nameserver 8.8.8.8 > /etc/resolv.conf” do?

If executing this command resolved your issue ...READ MORE

answered Jan 23, 2019 in Linux Administration by joey
1,228 views
0 votes
1 answer

Installation fails on xenial "Repository does not have a release file"

This bug is missing log files that ...READ MORE

answered May 22, 2019 in Linux Administration by Ishaan
137 views
0 votes
1 answer

Not able to access /etc/sudoers.d/python file

I think your system is not allowing ...READ MORE

answered Feb 6, 2019 in Linux Administration by Lohit
804 views
0 votes
1 answer
0 votes
1 answer

How do I set variable if a specific package version is installed in CFEngine?

Here is what you can do.Just use packagesmatching to ...READ MORE

answered Jul 12, 2018 in Other DevOps Questions by Atul
• 10,240 points
224 views
0 votes
2 answers

Install postgreSQL on Ubuntu

Follow the below commands to install PostgreSQL (PSQL) ...READ MORE

answered Nov 11 in Database by Prachi
• 140 points
191 views
0 votes
1 answer

Access progrs prompt without switching accounts

Use the following to get the postgres prompt ...READ MORE

answered Mar 22, 2019 in Database by Mahi
126 views
–1 vote
1 answer

How to get octal file permission in linux?

You can use this: stat -c "%a %n" ...READ MORE

answered Jan 3, 2019 in Linux Administration by Omkar
• 69,030 points
491 views
0 votes
1 answer

What is absolute path in Ubuntu?

An absolute path is a path to ...READ MORE

answered Feb 9, 2019 in Linux Administration by Omkar
• 69,030 points
192 views