Show the Top 10 Largest Directories on Linux
If you need to see the top 10 largest directories on your Linux system, you can use the following command:
du -h --max-depth=1 / | sort -rh | head -n …Linux
45 articles about linux development, tools, and best practices
How to set the Hostname on a Linux server with Terraform
If you need to set the hostname on a linux server, and you are using Terraform, then you can do the following:
Include the provisioner block and set …
How to Change a MariaDB/MySQL Data Directory to a New Location on Linux
Step 1 — Moving the MariaDB Data Directory
mysql -u root -p
select @@datadir;
Output:
+-----------------+
| @@datadir | …How to update NTP to sync clock on Linux
If you need to sync the clock on Linux using the central NTP clock service, you can do the following:
sudo service ntp stop
sudo ntpd -gq
sudo service …Understanding the Network Modes in AWS ECS
If using the EC2 launch type, the allowable network mode depends on the underlying EC2 instance’s operating system. If Linux, awsvpc, bridge, host and …
Read Article →AppMesh and ECS with Imported ACM certificates on Envoy Sidecar through EFS
Summary
This guide showcases the ability to use imported certificates from a third party provider (e.g. Venafi) in ACM, mount them in EFS and use them …
Read Article →How to Check if a Volume is Mounted in Bash
If you need to check if a volume is mounted in a Bash script, then you can do the following.
How to Check Mounted Volumes
First we need to determine …
Read Article →How to Determine if a Bash Variable is Empty
If you need to check if a bash variable is empty, or unset, then you can use the following code:
if [ -z "${VAR}" ];
The above code will check …
Read Article →How to Order by File Size using the du command in Linux
If you use the du command to list all the file sizes on Linux:
du
# or
du -h # Human readable
Then you would have noticed that they are not ordered by …
Read Article →How to Resize an AWS EBS Volume in Bash
If you need to resize an EBS volume in AWS, you can do so using bash.
Step 1 – Create a bash file
Create a bash file called resize.sh:
#!/bin/bash …How to Count Files in Directory on Linux
If you need to count how many files are in a directory on Linux, then you can use a combination of the ls command to list all the files, and the wc …
How to get CPU Frequency in Linux
If you need to get the CPU Frequency in Linux, then you can run the following command:
watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"