Linux Archives

Over 80% is running on some form of Linux – so does your Mac and you iPhone. Sometimes we have to get our hands dirty on the command line – it makes you feel like a proper hacker.

Here are some pointers I picked up on my journey.

How to edit your network connection settings from the command line in CentOS 7

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CentOS 7 has a very funky text-based user interface that allows editing several important network connection settings. It’s called nmtui. Type the command without any parameters to get started: nmtui Now use this handy interface: Your system may require a full restart for all settings to take affect. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/sec-Networking_Config_Using_nmtui.html

How to find the UUID of a disk drive in Linux

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There are two ways I know of which will print the UUID of all disk drives attached to the current system: blkid /dev/sr0: UUID=”2014-12-02-19-30-23-00″ LABEL=”CDROM” TYPE=”iso9660″ /dev/sda1: UUID=”ae55a647-3c57-4ab5-9651-1389703fe6fe” TYPE=”ext4″ /dev/sda2: UUID=”bMtCfO-zpDU-7U1t-DcHg-Fe9p-Cy1K-Se0e1I” TYPE=”LVM2_member” /dev/sdb1: UUID=”0982ce66-537a-497b-baaf-99136594f3e8″ TYPE=”ext4″ /dev/mapper/VolGroup-lv_swap: UUID=”8f0652a8-d79b-453f-aa2d-0ff0b5d0ae7b” TYPE=”swap” /dev/mapper/VolGroup-lv_root: UUID=”5afc1b25-e6cd-45b2-ad20-69f0fed323b9″ TYPE=”ext4″ /dev/mapper/VolGroup-lv_home: UUID=”94e15e98-1cff-49a9-b76a-a8f3a948e2ea” TYPE=”ext4″ or ls -la /dev/disk/by-uuid total 0 drwxr-xr-x. 2 root root 160 … Read more

Getting started with Jekyll on CentOS 7

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It’s not quite as easy to get up and running with Jekyll as the Quick Start Guide makes it sound. But it’s not super difficult either – if explained from one human to another. Here’s how I got Jekyll working on a vanilla CentOS 7 instance. Installing some necessary packages Before we can install Jekyll … Read more

How to mount EXT4 partitions on Android Jelly Bean

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I was racking my brains over how to mount an SD card formatted with anything other than FAT32 on my Android device. Jelly Bean and Kit Kat automatically mount FAT32 partitions, but they seem to ignore native Linux file systems – which Android clearly understands. Apparently there’s a $1.54 app on the Play Store that … Read more

The Debian Experience: Cheat Sheet for CentOS and Fedora users

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I’ve just installed a LAMP stack on my Nook Tablet using Debian. However I’ve been using CentOS since 2008 and I’m so used to how things are done there that it was a bit of a culture shock doing relatively simple things “on the other side”. It’s like a country whose language you don’t speak … Read more