read_certs

AWK script to print x509 cert and rsa key info

Installation

openssl and awk are required to run the script. Download the script and make it executable. Add the path to the script to your PATH environment variable. For example edit your .bashrc file and add the following line:

export PATH=$PATH:/path/to/read_certs

Then run source ~/.bashrc to apply the changes.

Usage

read_certs.sh <certfile|->

The scripts reads the file that contains list of PEM certificates or RSA keys and prints out the information in a human readable format. It also prints out the modulus of the RSA key with ellipsis to make it easier to compare.

The main advantage of this script is that it can read multiple certificates and keys from a single file.

Origins

The script used to be shared among coworkers unofficially but created a legacy I brought to my new job.

I added a RSA key info support.