What is 644 permission Linux? 644 – owner can read/write, group/others can read only. Some directory permission examples: 777 – all can read/write/search. 755 – owner can read/write/search, others and group can only search.
What does the chmod 644 represent? Restore Default File Permissions
Permissions of 644 mean that the owner of the file has read and write access, while the group members and other users on the system only have read access.
How do I give 644 permission to a file in Linux? Change Permissions Recursively
Then use first command to chmod 755 for all directories and sub directories. The second command will change all the files permission to 0644 (chmod 644) under the directory tree. You can also change permission using xargs command to do this quickly.
What is 755 permission Linux? 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.