24 Dec 2019
2 minutes read
Show Next Few Lines With Grep
Now and then I have to find some information in text files – logs, config files, etc. with a unique enough approach: I …
Scripts
11 Dec 2019
2 minutes read
How to Confirm Symlink Destination
Back to basics day: a very simple tip on working with one of the most useful things available in Unix and Linux …
07 Aug 2019
5 minutes read
Advice: Safely Removing a File or Directory in Unix
Removing files and directories is a very common task, so in some environments support engineers or automation scripts …
28 May 2019
3 minutes read
Projects: Automatic Keyboard Backlight for Dell XPS in Linux
Last night I finished a fun mini project as part of Unix Tutorials Projects. I have writted a basic enough script that …
26 May 2019
1 minutes read
Controlling Dell Laptop Keyboard Backlight From Command Line
Keyboard Trigger for Keyboard Backlight I didn’t take me long to start wondering if there was a way to control …
16 Mar 2019
2 minutes read
Check for Available Updates With YUM
If you’re using CentOS, Fedora or Red Hat Linux, you are probably familiar with the yum package manager. One of …
16 Aug 2018
4 minutes read
Review Latest Logs With Tail and Awk
Part of managing any Unix system is keeping an eye on the vital log files. Today I was discussing one of such scenarios …
18 Jun 2009
3 minutes read
Fixed Calculations in Unix Scripts
Although I’ve already shown you how to sum numbers up in bash, I only covered the bash way of doing it. I really …
25 Feb 2009
2 minutes read
Unix Scripts: How to Sum Numbers Up
If you’re ever thought of summing up more than two numbers in shell script, perhaps this basic post will be a good …
19 Sep 2008
3 minutes read
Easy Date Calculations in Unix Scripts With GNU Date
When I was writing a post about using date command to confirm date and time in your Unix scripts, I made a note in my …
How to decrypt files with Ansible Vault
ansible-vault decrypt restores an encrypted file …
Just discovered the macOS footprint command
I’ve administered Linux systems for around 25 …
How to Fix Ubuntu Packages Held Back
When trying to run do-release-upgrade on an Ubuntu …
How To Resize Filesystem with resize2fs
Quick note on filesystem resize on a typical …
macOS Tahoe
macOS Tahoe is the upcoming major release of macOS …
Centralized Bash history with timestamps
BASH is my Linux shell of choice (it’s zsh on …
Inspect filesystem operations with fs_usage in macOS
hey Unless you disable SIP, most of DTrace based …