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51 lines
844 B
Markdown
51 lines
844 B
Markdown
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## Name
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sysctl - configure kernel parameters at runtime
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## Synopsis
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```**sh
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# sysctl [-a] [variable[=value]]
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```
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## Description
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sysctl is a utility for managing kernel configuration parameters at runtime.
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This requires root privileges, and can crash your system.
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Available parameters are listed under /proc/sys/.
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## Options
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* `-a`: Display all kernel parameters and associated values
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## Arguments
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* `variable`: Retrieve the specified parameter
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* `variable=value`: Set the specified parameter to the specified value
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## Files
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* `/proc/sys` - source of kernel parameters
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## Examples
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View all parameters:
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```sh
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# sysctl -a
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```
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View `ubsan_is_deadly` parameter:
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```sh
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# sysctl ubsan_is_deadly
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ubsan_is_deadly = 1
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```
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Set `ubsan_is_deadly` parameter to zero (disabled):
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```sh
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# sysctl ubsan_is_deadly=0
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ubsan_is_deadly = 1 -> 0
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```
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