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42 lines
849 B
Plaintext
42 lines
849 B
Plaintext
---
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syntax: markdown
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tags: [tldr, linux]
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source: https://github.com/tldr-pages/tldr.git
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---
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# dmesg
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> Write the kernel messages to `stdout`.
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> More information: <https://manned.org/dmesg>.
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- Show kernel messages:
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`sudo dmesg`
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- Show kernel error messages:
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`sudo dmesg --level err`
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- Show kernel messages and keep reading new ones, similar to `tail -f` (available in kernels 3.5.0 and newer):
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`sudo dmesg -w`
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- Show how much physical memory is available on this system:
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`sudo dmesg | grep -i memory`
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- Show kernel messages 1 page at a time:
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`sudo dmesg | less`
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- Show kernel messages with a timestamp (available in kernels 3.5.0 and newer):
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`sudo dmesg -T`
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- Show kernel messages in human-readable form (available in kernels 3.5.0 and newer):
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`sudo dmesg -H`
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- Colorize output (available in kernels 3.5.0 and newer):
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`sudo dmesg -L`
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