Hello friends . Canonical's Debian-based OS, Ubuntu needs no introduction. The open source OS enjoys a significant fan following courtesy its impressive interface and ease of use plus the terrific functionality. The very recent release, Ubuntu 14.04 LTS is an instant crowd puller for the sheer fact that it's simply mind blowing.
1.sudo: Runs command as root
2.sudo su: Opens root shell
3.sudo su user: Opens shell as user
4.passwd: Changes password
5.ifconfig: Displays information network
6.iwconfig: Displays information from wireless
7.sudo iwlist scan: Scans wireless networks
8.(file) /etc/network/interfaces: Allows manual configuration
9.ifup interface: Enables online interface
10.ifdown interface: Disables interface
11./etc/init.d/service start: Starts service (SysV)
12./etc/init.d/service stop: Stops service (SysV)
13.ufw enable: Enables firewall
14.ufw default allow: Enables all connections by default
15.lsb_release -a: Gets the version of Ubuntu
2.sudo su: Opens root shell
3.sudo su user: Opens shell as user
4.passwd: Changes password
5.ifconfig: Displays information network
6.iwconfig: Displays information from wireless
7.sudo iwlist scan: Scans wireless networks
8.(file) /etc/network/interfaces: Allows manual configuration
9.ifup interface: Enables online interface
10.ifdown interface: Disables interface
11./etc/init.d/service start: Starts service (SysV)
12./etc/init.d/service stop: Stops service (SysV)
13.ufw enable: Enables firewall
14.ufw default allow: Enables all connections by default
15.lsb_release -a: Gets the version of Ubuntu
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