how to change permission of file in ubuntu

1.ubuntu mouse blink problem occurs After installing Ubuntu, the Ubuntu system identifies two monitors on the computer ("built-in monitor" and "unknown Monitor"), and the mouse does not blink when we close the unknown monitor. Workaround: Turn off

sudo chmod 600xxx (only the owner has read and write permissions)sudo chmod 644xxx (owner has read and write permissions, group user only Read permissions)sudo chmod 700xxx (only the owner has read and write and Execute permissions)sudo chmod 666xxx

Ubuntu dual system installation tutorial and troubleshooting, ubuntu Dual SystemPreparations for dual-system installation At least two USB flash drives are required. One is used as the ubuntu boot disk and the other is used as the windows 7 boot

Lub (liveappstubackup ). The current version is 2.2, with support for grub2 and 9.10. Download lub.zip, decompress it, and copy it to/usr/local/bin. (Use sudocp) Start the system to be backed up, and enter sudolub-B on the terminal as instructed.

Canonical company released a new 16.04 system in the last April 2016, and this system is long term support-lts. It supports the Debian installation package as always, but it also supports the latest snap installation package. The snap installation

Transferred from: http:// OS .51cto.com/art/201001/176721.htm We recommend that you install the VMware Tools System for Ubuntu users. First, you need to learn about Ubuntu VMware Tools and introduce Ubuntu VMware Tools in detail. To install Ubuntu

Ubuntu Samba Server Configuration I recently made open source software. Sometimes a package involves several operating systems, including windows and Linux. it is not convenient to transfer packets between these two operating systems. scp or ssh

LINUX file security and permissions when you create a file, the system saves all information about the file, including :? File location .? File type .? File Length .? Which user owns the file and which user can access the file .? I node .? File

Go to Ubuntu and run the root permission command-sudo and Su commands for Ubuntu user management Sudo refers to super-user do, which allows the current user to temporarily run this command as the administrator. Su is used to change the current user.

Ubuntu enters root permission command--sudo and su command details Ubuntu User Management sudo means super-user do, which allows the current user to temporarily execute this command as the administrator's identity root.Su is used to