Calmness Under Pressure refers to the ability to maintain composure and clear thinking in stressful or high-pressure situations. This skill involves managing emotional responses and making rational decisions when faced with challenges or crises. It is used to ensure effective performance and decision-making in situations where time-sensitive or critical actions are required.

An emergency procedure is a plan of actions to be conducted in a certain order or manner, in response to a specific class of reasonably foreseeable emergency, a situation that poses an immediate risk to health, life, property, or the environment. Where a range of emergencies are reasonably foreseeable, an emergency plan may be drawn up to manage each threat. Most emergencies require urgent intervention to prevent a worsening of the situation, although in some situations, mitigation may not be possible and agencies may only be able to offer palliative care for the aftermath. The emergency plan should allow for these possibilities.

Friendliness refers to the ability to engage with others in a warm and approachable manner. It involves displaying kindness, empathy, and a positive attitude during interactions. This skill is used to build rapport, foster positive relationships, and create a welcoming environment. Friendliness can enhance communication and collaboration by making others feel valued and understood.

Self-control is a common skill that involves regulating one's thoughts, emotions, and behaviors in order to achieve personal goals and adapt to one's environment. It is considered a key aspect of emotional intelligence and is linked to a range of positive outcomes, including improved decision-making, greater happiness, and better mental and physical health. While some people may naturally have stronger self-control than others, it is a skill that can be developed and improved through practice and mindful awareness.

In Unix, sync is a command that flushes file system buffers and data from RAM to the storage devices such as hard drives, making sure that all data is written to the disk storage before powering off the system. It is used primarily to prevent data loss in the event of power outages, system crashes or other errors. The sync command is typically run before shutting down or rebooting the system to ensure that all changes made to files or configurations are saved. As a specialized skill, knowledge of Unix sync is important for system administrators who manage and maintain Unix-based systems.