This Wiley Publishing tome is big (more than 650 pages), useful and very complete. Be warned, however, that its scope is limited to system administration. The purpose of the book is to solve “real ...

Problem Statement: Create a HBase table 'customer' with one column family 'details'. Write a shells script that loads the content of the file customers.dat in the HBase table. The structure of file ...

If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start. Creating a script on a Unix or Linux system can be dead easy or ...

This is a pure Unix shell script that lets you automate the updating of TLSA DNS records with the Cloudflare v4 API from acme.sh generated keys, including the rollover (next) key generated by passing ...

An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...