How do I monitor disk space in Linux?
9 Tools to Monitor Linux Disk Partitions and Usage in Linux
- fdisk (fixed disk) Command. …
- sfdisk (scriptable fdisk) Command. …
- cfdisk (curses fdisk) Command. …
- Parted Command. …
- lsblk (list block) Command. …
- blkid (block id) Command. …
- hwinfo (hardware info) Command.
How do I check disk IO utilization in Linux?
By using iotop command, you can monitor the disk utilization by individual processes. You will get the following output: By typing the iotop command with o option, you will get the actual I/O activity. With the help of iostat command, you will get the individual hard disk I/O activity.
How do I clear disk space in Linux?
Freeing disk space on your Linux server
- Get to the root of your machine by running cd /
- Run sudo du -h –max-depth=1.
- Note which directories are using a lot of disk space.
- cd into one of the big directories.
- Run ls -l to see which files are using a lot of space. Delete any you don’t need.
- Repeat steps 2 to 5.
How do I see partitions in Linux?
10 Commands to Check Disk Partitions and Disk Space on Linux
- fdisk. Fdisk is the most commonly used command to check the partitions on a disk. …
- sfdisk. Sfdisk is another utility with a purpose similar to fdisk, but with more features. …
- cfdisk. …
- parted. …
- df. …
- pydf. …
- lsblk. …
- blkid.
What is Iowait in Linux?
iowait is simply a form of idle time when nothing could be scheduled. The value may or may not be useful in indicating a performance problem, but it does tell the user that the system is idle and could have taken more work.
What is disk I O in Linux?
Storage I/O is input/output (or write/read) operations on a physical disk (or other storage, for example, disk or SSD). Requests which involve disk I/O can be slowed greatly if CPUs need to wait on the disk to read or write data. I/O Wait is the percentage of time the CPU had to wait on storage.
How do you reduce I O wait in Linux?
Take the following steps to reduce I/O wait related issues.
- Optimize your application’s code and database queries. …
- Keep your Linux system and software versions up-to-date. …
- Make sure that you have free memory available.
How do I clean up Linux?
All three commands contribute to free up disk space.
- sudo apt-get autoclean. This terminal command deletes all . …
- sudo apt-get clean. This terminal command is used to free up the disk space by cleaning up downloaded . …
- sudo apt-get autoremove.
How do I clean up my Linux system?
The 10 Easiest Ways to Keep Ubuntu System Clean
- Uninstall Unnecessary Applications. …
- Remove Unnecessary Packages and Dependencies. …
- Clean Thumbnail Cache. …
- Remove Old Kernels. …
- Remove Useless Files and Folders. …
- Clean Apt Cache. …
- Synaptic Package Manager. …
- GtkOrphan (orphaned packages)
How do I clean files in Linux?
5 Ways to Empty or Delete a Large File Content in Linux
- Empty File Content by Redirecting to Null. …
- Empty File Using ‘true’ Command Redirection. …
- Empty File Using cat/cp/dd utilities with /dev/null. …
- Empty File Using echo Command. …
- Empty File Using truncate Command.