LINUX
COMMANDS
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System information
$ dmesg - display (kernel) messages generated
dmesg | less
Display messages generated by the kernel. Most importantly
the messages displayed when you started Linux, but also
messages generated by kernel, since then.
$ df - diskspace free
df -h
Display disk space used, and available for each mounted
filesystem, in human-readable (-h) form.
df -hT
Same as above, including display of filesystem type (-T).
$ du - disk usage
du -h
Display disk space used by each directory in current directory,
in human-readable form (-h).
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