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FreeBSD - Display Information about the system

Article ID: 000015
Rating: 5.0 / 5.0 (10 votes)
Views: 2545

Type/platform:

# uname -m

2) Determining machine processor architecture:

# uname -p

3) Determining FreeBSD release level:

# uname -r

Generally, following command is use to get all info at a time:

# uname -mrs

FreeBSD 5.0-RELEASE i386

4) Determining CPU information such as speed, make etc

# dmesg | grep CPU

CPU: Pentium 4 (1716.41-MHz 686-class CPU)
acpi_cpu0: on acpi0
acpi_cpu: CPU throttling enabled, 8 steps from 100% to 12.5%

5) Determining real and available memory to FreeBSD:

# dmesg | grep memory

real memory = 201326592 (192 MB)
avail memory = 188555264 (179 MB)

OR

# sysctl -a | grep hw.*mem
# sysctl -a | grep mem

hw.physmem: 194985984
hw.usermem: 167641088
hw.cbb.start_memory: 2281701376

Note systcl has more info, just type to see rest of all info :)

# sysctl -a | less

6) Determining how long a system has been up

# uptime

7) Determining when a system was last rebooted or shutdown

# last -1 reboot
# last -1 shutdown

8) Determining swap file system usage

# swapinfo -k

9) Determining who is logged in and what they are doing
Following all commands can be use. users command displays the list of all logged in users only.

# w
# who
# users

10) Find out when user was last logged in
You can use last command as follows:

# last user-name

(a) To find out user vivek was last logged at what time use last as follows

# last vivek


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