I am a new Linux user. I have text files with lots of empty lines. How do I delete all empty lines under Linux or Unix operating systems?
I need to replace special characters with equivalent hexadecimal unicode under Linux or Unix like operating system. How do I list or find out unicodes for given characters?
How do I reverse lines of a file or files under Linux or Unix like operating systems?
How can I display a list of all installed CPAN / Perl modules under Unix like operating systems?
My ecommerce site runs using a cluster of Apache web server. The cluster is behind nginx load balancer. I want to merge backend Apache web server log files for statistics purpose. How do I mere web server log files under Linux / UNIX like operating systems using cron jobs?
How do I upgrade Perl version under FreeBSD operating system?
