If you use the Linux screen utility a lot for long running jobs etc you may have experienced scrolling issues. The quickest way is to try Control-a and then Escape. You should now be able to use Up/Down keys or even PgUp/PgDn. Press Escape to exit scrolling. In my case…
Bash Read Array From Config File
I was recently needing to read values from a configuration file into bash and had some success with reading json with jq into bash array(s). However I resorted to a non json version which worked well. Something like this. Config File Code Run
Bash Array Dynamic Name
Sometimes you want to have dynamic array names to simplify code. Below is one way of making the array name dynamic in a loop. And output like this.
Boto3 DynamoDB Create Table BillingMode
If you had issues when trying to create a DynamoDB table using On-Demand mode you probably need to upgrade boto3. I was using the apt repository version of python3-boto3 (1.4.2) and getting this message below. Unknown parameter in input: “BillingMode”, must be one of: AttributeDefinitions, TableName, KeySchema, LocalSecondaryIndexes, GlobalSecondaryIndexes, ProvisionedThroughput,…
OCI Cli Query
If you want to manipulate the output of Oracle Cloud Infrastructure CLI commands you can pipe output through jq. I have examples of jq elsewhere. You can also use the query option like follow. And for good measure also a jq example. Plus csv filter.
Azure AD SSO Login to AWS CLI
Note out of scope here is setting up the services itself. This article is about using a Node application to login to Azure on a client and then being able to use the AWS CLI. Specifically this information applied to a Linux desktop. Setting up the services are documented here:…
Bash History Plus Comment
If you like using Control-R in bash to find previous commands here is a useful tip. You can add a comment to a command and then when you use Control-R searching by typing you can find it by your comment. Example I use apt update. Run command including your comment…
Powerline Font Issue
I am using Powerline in my terminals and had an issue with the font. After messing with it I realize I was using a font that has not been patched for Powerline. I changed the gnome-terminal font from “Fira Mono Regular”to “DejaVu Sans Mono Book” and it worked. My steps…
Quick Backup and Purge
I highly recommend using restic instead of what I am talking about here. Mostly I am just documenting this for my own reference and this is not a great backup solution by any means. Also note: This script is creating backups local of course the idea would be to adapt…
Virtualbox Guest Additions Shared Folders
This may help someone so I am jotting down an issue I had. On some Linux flavors you may see the Virtualbox Guest additions shared folders not auto mounting on your desktop. I have seen this before but recently this was on Linux Lite for me. The issue is that…