Using the shellshock bash bug on an iMac.
iMac04:~ admin$ env VAR1='me() {echo "hello"}\ ' /bin/echo "hello" hello |
Getting free hard disk space easily.
iMac04:~ admin$ df -Hla Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/disk0s2 89G 64G 25G 73% 15757422 6089307 72% / /dev/disk0s4 410G 4.7G 405G 2% 1147839 98859403 1% /Volumes/TEMP STORAGE |
Get the geometry of your hard disk with the hdparm utility.
jason@jason-H55-USB3:~/Documents$ sudo hdparm -g /dev/sda /dev/sda: geometry = 60801/255/63, sectors = 976773168, start = 0 |
Update the whole repository information after the initial installation of Gentoo.
ec2-user@ip-172-31-30-35 ~ $ sudo emerge --sync |
Then update Portage.
ec2-user@ip-172-31-30-35 ~ $ emerge --oneshot portage |
After those commands, you are free to install any required software for your Gentoo instance.
ec2-user@ip-172-31-30-35 ~ $ emerge openvpn mc nmap htop |
This will install Midnight Commander, OpenVPN and the very useful htop and nmap port scanning tool.
This is how to get information about your Linux user.
ec2-user@ip-172-31-30-35 ~ $ w 03:00:47 up 1:00, 1 user, load average: 0.03, 0.03, 0.06 USER TTY LOGIN@ IDLE JCPU PCPU WHAT ec2-user pts/0 02:53 7.00s 0.01s 0.00s w |
The Linux command line user may also use the who am i command to get information like this.