tldr/pages/linux/sysctl.md

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2016-01-30 13:28:14 +03:00
# sysctl
> List and change kernel runtime variables.
- Show all available variables and their values:
`sysctl -a`
- Set a changeable kernel state variable:
`sysctl -w {{section.tunable}}={{value}}`
- Get currently open file handlers:
`sysctl fs.file-nr`
- Get limit for simultaneous open files:
`sysctl fs.file-max`
- Apply changes from /etc/sysctl.conf:
`sysctl -p`