Understanding umask and chmod in UNIX
This article discusses the umask and chmod commands in UNIX. The umask command sets the default permissions for files and directories that a user creates, while the chmod command can be used to change the permissions of existing files and directories.
Questions
- What is the umask command?
- How do I find out my default permissions?
- How can I change the default permissions?
- What is the chmod command?
- How do I use the chmod command to change permissions?
Answers
- The umask command sets the default permissions for files and directories that a user creates.
- You can find out your default permissions by executing the `umask` command.
- You can change the default permissions by executing the `umask` command with an argument, which is the mask you want.
- The chmod command changes the permissions of existing files and directories.
- You can use the chmod command to change permissions by specifying the new permissions in either a three-digit, numeric octal code or a symbolic format.
For more information on the umask and chmod commands, please see the following resources: