As with many things on the Linux command line, you have some choices on how you make your requests. The chmod command allows you to change permissions numerically or using character expressions.

Mastering user account and permission management is a linchpin in fortifying your Linux bastion. This article has traversed through the essentials of managing user accounts, groups, file permissions, ...

The default Ubuntu permissions are kinda silly, creating homedirs that are browsable by group and other by default. Not so much of an issue with purely local users (and can also be fixed via DIR ...

Do you wonder why you can't edit, execute, or even open some UNIX files and directories? It's all in the permissions. Find out how you read these permissions and make them work for you.