Pushed changes to GIT but don’t see it in repository
Problem You pushed your changes to GIT but you don’t see it in the repository. Diagnosis First thing is to…
Perl Quotes and Escape Sequences
Perl string literals are enclosed in quotation marks. You can use either single quotes (”) or double quotes (“”). Now…
Linux split command
In Linux you can use split and join commands to split large files into smaller files or join many smaller…
Copying a large database from one server to another
Recently, I had to copy a large database from one server to another. I had 100G free on the source…
The VirtualBox VM was created with a user that doesn’t match the current user running Vagrant
Error Message The VirtualBox VM was created with a user that doesn’t match the current user running Vagrant. VirtualBox requires…
ORA-01858: a non-numeric character was found where a numeric was expected
Error Message What it means This error occurs if a wrong value is passed when converting a number or string…
Finding duplicate values in a MySQL database
In the following query, we list all lastname held by 2 or more employees. If you want a value to…
The VirtualBox VM was created with a user that doesn’t match the current user running Vagrant
Error Message Cause You copied someone vagrant box or your own from one machine to another. The box comes with…
Eclipse: change font size
To change the font size on eclipse temporarily, simply use ctrl++ and ctrl–. If you wish to change is permanently,…
Java: removing enclosing quotes
The following code would remove enclosing quotes from Java Strings With this regular expression, if Java sees an opening double…