Shell script to check SSL certificate info like expiration date and subject

Written by Alain Kelder on April 9, 2014

Remembering the correct openssl syntax for fetching certificate from a remote host or parsing a local certificate file for useful informatio... more

Shell script to convert CSV to HTML tables (updated)

Written by Alain Kelder on March 27, 2014

Here's an updated version of a previously posted shell script that uses awk to convert a delimited file (where delimiter can be any characte... more

Bash and awk to convert delimited data (csv, tsv, etc) to HTML tables

Written by Alain Kelder on February 15, 2014

A shell wrapper script that uses awk to convert a delimited file (where delimiter can be any character) to HTML tables. Example 1 -- ... more

Export Chrome (or Chromium) browsing history on Linux

Written by Alain Kelder on January 29, 2014

To export Chrome (or Chromium) browsing history on Linux in a more flexible format than what Settings > History displays, could extract it f... more

Fix for Linux boot failure and grub rescue prompt following a normal system update

Written by Alain Kelder on January 9, 2014

I had a fresh Debian 7 (Wheezy) install on a new server. Some months later, on Dec 21 2013, ran "sudo apt-get update && sudo apt-get dist-up... more

Resend mail that's locally stored in a mbox format on a Linux box to a working email address

Written by Alain Kelder on January 3, 2014

The specific use case is that I didn't have Postfix properly configured on some machine to send mail, and it was delivered locally to "/var/... more