Linux/Unix Configuration

Append “Hello” to /hello.txt echo "Hello" >> /hello.txt Replace /hello.txt and put the “Hello” into the /hello.txt echo "Hello" > /hello.txt Show file info wc /root/anaconda-ks.cfg Delete file(s)

Get CPU Model cat "/proc/cpuinfo" | grep "model name" Get CPU Frequency cat "/proc/cpuinfo" | grep "cpu MHz" Get CPU Cache Size cat "/proc/cpuinfo" | grep "cache size"

Install HDD Temperature. yum install hddtemp Show hdd temperature hddtemp /dev/sda /dev/sda = hdd1, /dev/sdb = hdd2

lsb_release --all cat /etc/issue cat /etc/*-release cat /proc/version Get CentOS Release rpm -q centos-release

Get RAM Information free -m free -mto | grep Mem: | awk '{ print $3 " MB" }' rusedram="$($_CMD free -mto | grep Mem: | awk '{ print

FreeBSD: boot -s Solaris: stop+a bo: boot -s Linux: left-alt for lilo boot: linux -b rw sushell=/sbin/sash single (init=/bin/sh) UnixWare: During the boot pres space [boot] INITSTATE=s go

This how to shows how to enable root log in on fedora GUI Desktop. Open Terminal from Applications -> System Tools Type su - and then insert root

In this tutorial, we will show you how to enable root login on Fedora Linux and discuss the security implications of doing so. We will also provide tips

To View a port number type in terminal for full list: cat /etc/services for one you need: cat /etc/services | grep (port number or service) View /etc/services file.

In /boot/loader.conf add vn_load = “YES” or load by the hands kldload vn.ko mount: vnconfig /dev/vn0c /home/user/cdrom.iso mount -t cd9660 /dev/vn0c /mnt unmount: umount /mnt vnconfig -u /dev/vn0c