How to use the command 'leave' (with examples)
The ’leave’ command is a utility designed to remind users when it’s time to leave their current task or environment. Typically used in environments where a terminal is active, it sends reminders to notify you when you’ve specified it’s time to depart. This can be particularly useful for managing your time effectively, ensuring that you don’t overstay your intended schedule. An important note is that to cancel any active reminders set by the command, you can terminate the running process by using kill $(pidof leave). More detailed information can be found in its manual.
Use case 1: Set a reminder at a given time
Code:
leave 1530
Motivation:
Imagine you have a meeting or appointment scheduled at a specific time, and you need a reminder so that you can prepare and leave on time. By using the ’leave’ command, you can set a reminder that prompts you exactly when it’s time to head out.
Explanation:
1530: This argument specifies the time for the reminder in a 24-hour format. In this case, ‘1530’ translates to 3:30 PM. When this command is executed, the system will notify you to leave at 3:30 PM, helping you stick to your schedule.
Example Output:
You have to leave in 15 minutes.
You have to leave in 5 minutes.
Time to leave!
Use case 2: Set a reminder to leave at noon
Code:
leave 1200
Motivation:
For those who work diligently throughout the morning, it can be easy to lose track of time and miss lunch. Setting a reminder for noon ensures that you take a necessary break and refresh yourself.
Explanation:
1200: This specifies the reminder time as 12:00 PM in a 24-hour format, commonly recognized as noon. With this command, a series of reminders will be triggered as noon approaches, gently encouraging you to stop work and consider taking a break.
Example Output:
You have to leave in 15 minutes.
You have to leave in 5 minutes.
Time to leave!
Use case 3: Set a reminder in a specific amount of time
Code:
leave +1:30
Motivation:
When involved in tasks that have flexible timing or when you want to allocate a specific duration for work or study sessions, it’s helpful to set reminders relative to the current time. This use case is particularly useful when managing time for activities like focused work sessions or breaks.
Explanation:
+1:30: The ‘+’ symbol indicates that the time given is relative to the current time. The ‘1:30’ denotes an hour and a half from now. So, if the current time is 2:00 PM, this command sets the reminder for 3:30 PM.
Example Output:
You have to leave in 15 minutes.
You have to leave in 5 minutes.
Time to leave!
Use case 4: Set a reminder to leave in 4 hours and 4 minutes
Code:
leave +0404
Motivation:
This scenario is suited for tasks or commitments with longer, yet precise durations, such as attending a workshop, seminar, or any activity demanding specific timing. Planning in advance promotes better time management and prevents the need to track elapsed time constantly.
Explanation:
+0404: Again, the ‘+’ indicates that this is a duration from the current time. Here, ‘0404’ means the reminder will be set for 4 hours and 4 minutes from now. It gives you ample time to finish extended tasks or plan around commitments without the need for frequent clock-checking.
Example Output:
You have to leave in 15 minutes.
You have to leave in 5 minutes.
Time to leave!
Conclusion:
The ’leave’ command serves as an efficient tool for time management, ensuring you stay aware of your schedule through timely reminders. By setting reminders for specific times or durations tailored to your needs, you can manage your activities effectively, enhance productivity, and maintain a balanced lifestyle.
