Linux Check Memory Slots Used
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How much space do I have free on my Linux drive?
Managing disk space on a Linux server is an important task. For example, package manager applications notify you how much disk space will be required for an installation. For that information to be meaningful, you should know how much space your system has available.
Following are the best tools you can use to check memory usage on Linux. Free is the default tool you can use to check the memory usage in Linux. You can use this tool by simply typing freeon the terminal. However, the output will be less readable if you use free without options. Free comes with a row of options to get customized. Vmstat -s Displays the amount of memory used and available. Top top command displays all the currently running process in the system. This command displays the list of processes and thread currently being handled by the kernel. Top command can also be used to monitor the total amount of memory usage. This is a terribly ugly and non-portable way of getting the memory usage, but since getrusage’s memory tracking is essentially useless on Linux, reading /proc//statm is the only way I know of to get the information on Linux. VIRT: Virtual memory used by the process. RES: Resident memory used by the process. SHR: Shared memory used by the process. S: Status of the process. (See the list of values this field can take below).%CPU: The share of CPU time used by the process since the last update.%MEM: The share of physical memory used. Several commands report on how much memory is installed and being used on Linux systems. You can be deluged with details or get a quick and easy answer, depending on the command you use.
In this tutorial, learn how to use the df command to check disk space in Linux and the du command to display file system disk space usage.
*A Linux-based system
*A terminal window / command line
*A user account with sudo or root privileges
You can check your disk space simply by opening a terminal window and entering the following:
The df command stands for disk free, and it shows you the amount of space taken up by different drives. By default, df displays values in 1-kilobyte blocks.
You can display disk usage in a more human-readable format by adding the –h option:
This displays the size in kilobytes (K), megabytes (M), and gigabytes (G).
The df command lists several columns:
Your output may have more entries. The columns should be self-explanatory:
*Filesystem – This is the name of each particular drive. This includes physical hard drives, logical (partitioned) drives, and virtual or temporary drives.
*Size – The size of the filesystem.
*Used – Amount of space used on each filesystem.
*Avail – The amount of unused (free) space on the filesystem.
*Use% – Shows the percent of the disk used.
*Mounted on – This is the directory where the file system is located. This is also sometimes called a mount point.
The list of filesystems includes your physical hard drive, as well as virtual hard drives:
*/dev/sda2 – This is your physical hard drive. It may be listed as /sda1, /sda0, or you may even have more than one. /dev stands for device.
*udev – This is a virtual directory for the /dev directory. This is part of the Linux operating system.
*tmpfs – You may have several of these. These are used by /run and other Linux processes as temporary filesystems for running the operating system. For example, the tmpfs /run/lock is used to create lockfiles. These are the files that prevent multiple users from changing the same file at the same time.
The df command can be used to display a specific file system:
You can also use a backslash:
This displays the usage on your primary hard drive. Use the mount point (in the Mounted on column) to specify the drive you want to check.
Note: The df command only targets a full filesystem. Even if you specify an individual directory, df will read the space of the whole drive.
To list all file systems by type, use the command:
This lists drives with the ext4 type, in human-readable format.
You can display disk usage in units of 1000 instead of 1024:
This can address a point of confusion in storage technology. Hard drive manufacturers sell hard drives in sizes based on 1000 bytes = 1 kilobyte.
However, operating systems divide that space up so that 1024 bytes = 1 kilobyte. Because of this, a 1000-gigabyte hard drive ends up with roughly 930 gigabytes of usable storage.
The du Hampton beach casino ballroom schedule. command displays disk usage. This tool can display disk usage for individual directories in Linux, giving you a finer-grained view of your disk usage. Use it to display the amount of space used by your current directory:
Like the df command, you can make du human-readable:
It displays a list of the contents of the current directory, and how much space they’re using. You can simplify the display with the –s option:
This shows how much space the current directory uses.
To specify the directory or file, check use the following options:
With the second command, you may have noticed a permission denied error message. This means the current user doesn’t have the privileges to access certain directories. Use the sudo command to elevate your privileges:
Note: If you’re working on CentOS Linux, you may need to use the su command to switch to the root user to access protected directories.
You should now understand how to use df and du commands to check disk space on your Linux system. Remember, to display a complete list of options, use either df ––help or du ––help.
Check out our article on how to use fsck command to run a filesystem check as preventive maintenance or when there is an issue with your system.
Next you should also read
In most modern Linux operating systems, managing a service is quite simple when it comes to basic commands.…
Learn how to use the su command with practical examples and explanations. Change users in the terminal window…
Rsync is a Linux tool that allows you to transfer files to another location. You can customize the command by…
Use the command line interface to display directory size and for display disk space. This guide will help you…
This is our sixth post on getting hardware information. In this post we will see how to get RAM details such as size, speed, make, maximum capacity allowed RAM etc. We already covered some hardware related stuff in this series so far as given below.
Get BIOS, Firmware, Hardware And Drivers Details in Linux/Unix
Example1: Find RAM size(Total, available, used) in Linux. We can use below five methods to get details.
free
Want to understand free command output? check our post on free command.Linux Check Memory Slots Used To
Output:
top
Check our excelent post to understand Linux top command output.
Output:
Output:
Output:
dmidecode –type memory
or
dmidecode -t 17
Output:
Example 2: Get RAM information like location, Maximum capacity of RAM supported, number of RAM devices present and sa lot info.
Output:
Valise roulette fille voyage gratuit. Valise et sac de voyage sur GiFi.fr Restez actifs et maintenez-vous en forme avec tous nos produits et accessoires! Paiement en 3 fois sans frais. Valise Roulette Fille - 26 Awesome Delsey Sac De Voyage Trolley Cabine 55 Cm Les bretelles sont enlevables et rangeables elles aussi. Cahiers, classeurs rigides, chemises, ardoise, pochette de roulette, cahier de brouillon, agenda scolaire et trousse garnie de stylos.
Example 3: Find RAM information like Type of RAM(SD RAM or DDR2/3), Speed, Manufacture etc
Output:
In our next post in this series we will see BIOS and Processer details.The following two tabs change content below.Mr Surendra Anne is from Vijayawada, Andhra Pradesh, India. He is a Linux/Open source supporter who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. He works as Devops Engineer with Taggle systems, an IOT automatic water metering company, Sydney . You can contact him at surendra (@) linuxnix dot com.Linux Check Memory Slots Used Car DealersLinux Check Memory Slots Used Cars
*Docker: How to copy files to/from docker container - June 30, 2020
*Anisble: ERROR! unexpected parameter type in action: Fix - June 29, 2020
*FREE: JOIN OUR DEVOPS TELEGRAM GROUPS - August 2, 2019
*Review: Whizlabs Practice Tests for AWS Certified Solutions Architect Professional (CSAP) - August 27, 2018
*How to use ohai/chef-shell to get node attributes - July 19, 2018
Register here: http://gg.gg/upcg2
https://diarynote-jp.indered.space
How much space do I have free on my Linux drive?
Managing disk space on a Linux server is an important task. For example, package manager applications notify you how much disk space will be required for an installation. For that information to be meaningful, you should know how much space your system has available.
Following are the best tools you can use to check memory usage on Linux. Free is the default tool you can use to check the memory usage in Linux. You can use this tool by simply typing freeon the terminal. However, the output will be less readable if you use free without options. Free comes with a row of options to get customized. Vmstat -s Displays the amount of memory used and available. Top top command displays all the currently running process in the system. This command displays the list of processes and thread currently being handled by the kernel. Top command can also be used to monitor the total amount of memory usage. This is a terribly ugly and non-portable way of getting the memory usage, but since getrusage’s memory tracking is essentially useless on Linux, reading /proc//statm is the only way I know of to get the information on Linux. VIRT: Virtual memory used by the process. RES: Resident memory used by the process. SHR: Shared memory used by the process. S: Status of the process. (See the list of values this field can take below).%CPU: The share of CPU time used by the process since the last update.%MEM: The share of physical memory used. Several commands report on how much memory is installed and being used on Linux systems. You can be deluged with details or get a quick and easy answer, depending on the command you use.
In this tutorial, learn how to use the df command to check disk space in Linux and the du command to display file system disk space usage.
*A Linux-based system
*A terminal window / command line
*A user account with sudo or root privileges
You can check your disk space simply by opening a terminal window and entering the following:
The df command stands for disk free, and it shows you the amount of space taken up by different drives. By default, df displays values in 1-kilobyte blocks.
You can display disk usage in a more human-readable format by adding the –h option:
This displays the size in kilobytes (K), megabytes (M), and gigabytes (G).
The df command lists several columns:
Your output may have more entries. The columns should be self-explanatory:
*Filesystem – This is the name of each particular drive. This includes physical hard drives, logical (partitioned) drives, and virtual or temporary drives.
*Size – The size of the filesystem.
*Used – Amount of space used on each filesystem.
*Avail – The amount of unused (free) space on the filesystem.
*Use% – Shows the percent of the disk used.
*Mounted on – This is the directory where the file system is located. This is also sometimes called a mount point.
The list of filesystems includes your physical hard drive, as well as virtual hard drives:
*/dev/sda2 – This is your physical hard drive. It may be listed as /sda1, /sda0, or you may even have more than one. /dev stands for device.
*udev – This is a virtual directory for the /dev directory. This is part of the Linux operating system.
*tmpfs – You may have several of these. These are used by /run and other Linux processes as temporary filesystems for running the operating system. For example, the tmpfs /run/lock is used to create lockfiles. These are the files that prevent multiple users from changing the same file at the same time.
The df command can be used to display a specific file system:
You can also use a backslash:
This displays the usage on your primary hard drive. Use the mount point (in the Mounted on column) to specify the drive you want to check.
Note: The df command only targets a full filesystem. Even if you specify an individual directory, df will read the space of the whole drive.
To list all file systems by type, use the command:
This lists drives with the ext4 type, in human-readable format.
You can display disk usage in units of 1000 instead of 1024:
This can address a point of confusion in storage technology. Hard drive manufacturers sell hard drives in sizes based on 1000 bytes = 1 kilobyte.
However, operating systems divide that space up so that 1024 bytes = 1 kilobyte. Because of this, a 1000-gigabyte hard drive ends up with roughly 930 gigabytes of usable storage.
The du Hampton beach casino ballroom schedule. command displays disk usage. This tool can display disk usage for individual directories in Linux, giving you a finer-grained view of your disk usage. Use it to display the amount of space used by your current directory:
Like the df command, you can make du human-readable:
It displays a list of the contents of the current directory, and how much space they’re using. You can simplify the display with the –s option:
This shows how much space the current directory uses.
To specify the directory or file, check use the following options:
With the second command, you may have noticed a permission denied error message. This means the current user doesn’t have the privileges to access certain directories. Use the sudo command to elevate your privileges:
Note: If you’re working on CentOS Linux, you may need to use the su command to switch to the root user to access protected directories.
You should now understand how to use df and du commands to check disk space on your Linux system. Remember, to display a complete list of options, use either df ––help or du ––help.
Check out our article on how to use fsck command to run a filesystem check as preventive maintenance or when there is an issue with your system.
Next you should also read
In most modern Linux operating systems, managing a service is quite simple when it comes to basic commands.…
Learn how to use the su command with practical examples and explanations. Change users in the terminal window…
Rsync is a Linux tool that allows you to transfer files to another location. You can customize the command by…
Use the command line interface to display directory size and for display disk space. This guide will help you…
This is our sixth post on getting hardware information. In this post we will see how to get RAM details such as size, speed, make, maximum capacity allowed RAM etc. We already covered some hardware related stuff in this series so far as given below.
Get BIOS, Firmware, Hardware And Drivers Details in Linux/Unix
Example1: Find RAM size(Total, available, used) in Linux. We can use below five methods to get details.
free
Want to understand free command output? check our post on free command.Linux Check Memory Slots Used To
Output:
top
Check our excelent post to understand Linux top command output.
Output:
Output:
Output:
dmidecode –type memory
or
dmidecode -t 17
Output:
Example 2: Get RAM information like location, Maximum capacity of RAM supported, number of RAM devices present and sa lot info.
Output:
Valise roulette fille voyage gratuit. Valise et sac de voyage sur GiFi.fr Restez actifs et maintenez-vous en forme avec tous nos produits et accessoires! Paiement en 3 fois sans frais. Valise Roulette Fille - 26 Awesome Delsey Sac De Voyage Trolley Cabine 55 Cm Les bretelles sont enlevables et rangeables elles aussi. Cahiers, classeurs rigides, chemises, ardoise, pochette de roulette, cahier de brouillon, agenda scolaire et trousse garnie de stylos.
Example 3: Find RAM information like Type of RAM(SD RAM or DDR2/3), Speed, Manufacture etc
Output:
In our next post in this series we will see BIOS and Processer details.The following two tabs change content below.Mr Surendra Anne is from Vijayawada, Andhra Pradesh, India. He is a Linux/Open source supporter who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. He works as Devops Engineer with Taggle systems, an IOT automatic water metering company, Sydney . You can contact him at surendra (@) linuxnix dot com.Linux Check Memory Slots Used Car DealersLinux Check Memory Slots Used Cars
*Docker: How to copy files to/from docker container - June 30, 2020
*Anisble: ERROR! unexpected parameter type in action: Fix - June 29, 2020
*FREE: JOIN OUR DEVOPS TELEGRAM GROUPS - August 2, 2019
*Review: Whizlabs Practice Tests for AWS Certified Solutions Architect Professional (CSAP) - August 27, 2018
*How to use ohai/chef-shell to get node attributes - July 19, 2018
Register here: http://gg.gg/upcg2
https://diarynote-jp.indered.space
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