Cal Command in Linux with Examples

Last Updated on October 19, 2023 by Abhishek Sharma

The fdisk command is a powerful and essential tool in the Linux operating system that allows users to manage disk partitions on their system. Whether you are setting up a new hard drive, resizing existing partitions, or simply inspecting disk information, fdisk is a versatile utility that can handle a wide range of disk-related tasks. In this article, we will explore the fdisk command in Linux, its basic usage, and provide you with practical examples to help you harness the full potential of this command.

What is cal command in linux with examples?

The cal command in Linux is used to display a simple calendar in the terminal. By default, it shows the calendar for the current month. You can specify a particular month or year to display. Here are some examples of how to use the cal command:

1. Display the current month’s calendar:

cal

This command will display the calendar for the current month, highlighting the current date.

2. Display a specific month and year:

cal 5 2023

This command will display the calendar for May 2023. You can replace "5" with the month and "2023" with the desired year.

3. Display a specific year:

cal 2024

This command will show the calendars for all twelve months of the year 2024, one month per screen.

4. Display a different day as the starting day of the week:

cal -s

By default, cal starts the week with Sunday. Use the -s option to start the week with Monday instead.

5. Display a specific month with a different starting day:

cal -m -3

This command will display the calendar for March, but with Monday as the first day of the week. The -m option changes the starting day.

6. Display a specific month with Julian dates:

cal -j 7 2022

This command will display the calendar for July 2022, showing Julian dates (day of the year) instead of regular dates.

7. Display a 3-month calendar starting from the current month:

cal -3

This command will display a calendar that includes the previous, current, and next months. It’s useful for getting a quick overview of upcoming dates.

8. Show the calendar for a specific month in a different language:

LANG=es_ES.utf8 cal 10 2023

This command will display the calendar for October 2023 in Spanish. You can replace "es_ES.utf8" with your desired locale.

The cal command is a simple and handy tool for checking dates and planning events directly in the terminal. You can experiment with different options to customize the display to your preferences and needs.

Conclusion:
The fdisk command in Linux is an invaluable tool for managing disk partitions. It provides a powerful set of features that allow you to create, delete, and modify partitions on your hard drives. However, with great power comes great responsibility, and using fdisk incorrectly can result in data loss. It’s crucial to understand the basics of fdisk and to always back up your data before making any changes to your disk partitions. With the knowledge and examples provided in this article, you are now equipped to navigate and utilize the fdisk command effectively and safely. Whether you’re setting up a new system or managing existing storage, fdisk is an essential tool in your Linux toolkit.

FAQ (Frequently Asked Questions) related to cal command in linux with examples:

Here are some FAQs related to cal commands in linux with examples.

1. What is fdisk in Linux?
Fdisk is a command-line utility in Linux used for managing disk partitions on your system. It allows you to create, delete, modify, and inspect partitions on your hard drives.

2. How do I access the fdisk command?
To use fdisk, open your terminal or command prompt, and simply type fdisk followed by the device or disk you want to manage. For example, fdisk /dev/sda.

3. Can fdisk destroy my data?
Yes, fdisk can potentially destroy data if used incorrectly. Be extremely cautious when working with fdisk, especially when deleting or resizing partitions. Always backup your important data before making any changes.

4. What are the basic fdisk commands?
Some basic fdisk commands include:

p: Print the partition table.
n: Create a new partition.
d: Delete a partition.
t: Change a partition's type.
w: Write changes to the disk.

5. Can I use fdisk for all types of storage devices?
Fdisk is primarily designed for traditional MBR (Master Boot Record) partitioning schemes. For modern systems using GPT (GUID Partition Table), it’s recommended to use the gdisk or gparted tools.

6. How can I resize a partition with fdisk?
To resize a partition, you first need to delete it and then recreate it with the desired size. Be cautious when resizing, as it can lead to data loss if not done properly.