linux

serial configuration

sudo adduser mikeh dialout

linux serial configuration

linux.org.au

Linux questions
How to see the upgrades on LM / Ubuntu that have recently been performed.
Use the list as a learning exercise to discover what they do.

manual
self test

Linux printers
lpinfo -m | grep gutenprint | more
lpinfo

A placeholder for my Raspberry Pi things.
element14

image writer
NOOBS is an easy operating system installer which contains Raspbian and LibreELEC. It also provides a selection of alternative operating systems which are then downloaded from the internet and installed.

export PATH=$PATH:/home/mikeh/.local/bin
Add extra path to PATH

~/hours $ cat ~/.profile
# ~/.profile: executed by the command interpreter for login shells.
# This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login
# exists.
# see /usr/share/doc/bash/examples/startup-files for examples.
# the files are located in the bash-doc package.

# the default umask is set in /etc/profile; for setting the umask
# for ssh logins, install and configure the libpam-umask package.
#umask 022

GnuPG FAQ

Some examples of using security keys and certificates (work in progress)
locating-an-existing-ssh-key-pair

Command line and full screen utilities for browsing procfs

My place on git lab

When starting the computer, hold down the SHIFT key and wait for the GRUB prompt.
I needed this as I had to edit a parameter that seemed to have been added in a recent upgrade.

press the E key and you are taken into the edit process for the config file.
Find the parts that you want to change, maybe just deleting an option, and then press F10 to continue the boot process.
The config file is not changed at that point - you have to do that separately - more later.

To make the change permanent we have to use something equivalent to:

A recent adventure into investigating the status of laptop batteries took me down the path of GUI to display the charging situation. Here is a graph of the result.