tldr/pages/linux/dmesg.md

# dmesg

> Write the kernel messages to standard output.

- Show kernel messages:

`dmesg`

- Show kernel messages and keep reading new ones, similar to `tail -f` (available in kernels 3.5.0 and newer):

`dmesg -w`

- Show how much physical memory is available on this system:

`dmesg | grep -i memory`

- Show kernel messages 1 page at a time:

`dmesg | less`
-												dmesg: add page (#1431)


											
										
										
											2017-07-24 22:02:58 +03:00
+								# dmesg
 								> Write the kernel messages to standard output.
 								- Show kernel messages:
 								`dmesg`
-												dmesg: include flag to follow messages (#1446)


											
										
										
											2017-09-01 21:33:13 +03:00
+								- Show kernel messages and keep reading new ones, similar to `tail -f` (available in kernels 3.5.0 and newer):
 								`dmesg -w`
-												dmesg: add page (#1431)


											
										
										
											2017-07-24 22:02:58 +03:00
+								- Show how much physical memory is available on this system:
 								`dmesg | grep -i memory`
 								- Show kernel messages 1 page at a time:
 								`dmesg | less`