linux
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linux [2022/10/07 14:37] richard [Users and Groups] |
linux [2023/07/20 20:03] (current) richard |
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| Linux is a multi-user operating system. Different users and groups of users can be assigned permissions to handle certain files or run certain commands. \\ | Linux is a multi-user operating system. Different users and groups of users can be assigned permissions to handle certain files or run certain commands. \\ | ||
| \\ | \\ | ||
| - | root is a special user on Linux. root is a super-user account that can see all files and has permissions to run all commands. Normally this account should only be used for administrative tasks.\\ | + | //root// is a special user on Linux. root is a super-user account that can see all files and has permissions to run all commands. Normally this account should only be used for administrative tasks.\\ |
| root is automatically created when a Linux system is installed.\\ | root is automatically created when a Linux system is installed.\\ | ||
| It's best practice to set up secondary user accounts and give those user accounts required permissions to perform their tasks. https://docs.rackspace.com/support/how-to/linux-server-security-best-practices/ | It's best practice to set up secondary user accounts and give those user accounts required permissions to perform their tasks. https://docs.rackspace.com/support/how-to/linux-server-security-best-practices/ | ||
| ===== File System ===== | ===== File System ===== | ||
| + | The Linux file system is organised into files and directories. Directories are basically like folders. \\ | ||
| + | \\ | ||
| + | Linux has standard directories for typical uses: | ||
| + | * /bin - binaries | ||
| + | * /etc - "et-see", system configuration files (hosts file etc) | ||
| + | * /home - home directory for users' files | ||
| + | * /root - special home directory for the root user | ||
| + | * /usr - "unix system resources", user related programs (static data) | ||
| + | * /var - variable data files, log files, files being written to constantly | ||
| + | |||
| + | \\ | ||
| + | |||
| + | https://www.howtogeek.com/117435/htg-explains-the-linux-directory-structure-explained/ \\ | ||
| + | https://www.geeksforgeeks.org/linux-directory-structure/ \\ | ||
| + | Filesystem Hierarchy Standard (FHS) https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard \\ | ||
| + | History of /usr https://askubuntu.com/questions/130186/what-is-the-rationale-for-the-usr-directory \\ | ||
| + | |||
| + | \\ | ||
| + | \\ | ||
| + | Commands | ||
| + | https://twitter.com/mujeeb0147/status/1586324478606594050?t=NOWX0uHU7k-PnZsvqkeqOA&s=19 | ||
| + | |||
| + | ===== Programming ===== | ||
| + | |||
| + | https://en.wikibooks.org/wiki/Bash_Shell_Scripting/Whiptail\\ | ||
| + | http://akshaim.github.io/IoT/RPi/RaspberryPi-102.html\\ | ||
| + | https://funprojects.blog/2022/04/06/text-interfaces-with-whiptail-and-dialog/\\ | ||
| + | |||
| + | {{youtube>TuPO-eAMy4I?medium}} | ||
| + | \\ | ||
| + | \\ | ||
| + | |||
| + | ===== Ubuntu ===== | ||
| + | https://tecadmin.net/how-to-install-xrdp-on-ubuntu-22-04/ | ||
linux.1665153450.txt.gz ยท Last modified: 2022/10/07 14:37 by richard
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