SYSTEMHardware | Statistics | Users | Limits | Runlevels | root password | Compile kernel | Repair grub
Running kernel and system information# uname -a # Get the kernel version (and BSD version) # lsb_release -a # Full release info of any LSB distribution # cat /etc/SuSE-release # Get SuSE version # cat /etc/debian_version # Get Debian version
Use /etc/DISTR-release with DISTR= lsb (Ubuntu), redhat, gentoo, mandrake, sun (Solaris), and so on. See also /etc/issue.
# uptime
# Show how long the system has been running + load
# hostname
# system's host name
# hostname -i
# Display the IP address of the host. (Linux only)
# man hier
# Description of the file system hierarchy
# last reboot
# Show system reboot history
Hardware Informations
Kernel detected hardware
# dmesg
# Detected hardware and boot messages
# lsdev
# information about installed hardware
# dd if=/dev/mem bs=1k skip=768 count=256 2>/dev/null | strings -n 8 # Read BIOS
Linux
# cat /proc/cpuinfo
# CPU model
# cat /proc/meminfo
# Hardware memory
# grep MemTotal /proc/meminfo
# Display the physical memory
# watch -n1 'cat /proc/interrupts'
# Watch changeable interrupts continuously
# free -m
# Used and free memory (-m for MB)
# cat /proc/devices
# Configured devices
# lspci -tv
# Show PCI devices
# lsusb -tv
# Show USB devices
# lshal
# Show a list of all devices with their properties
# dmidecode
# Show DMI/SMBIOS: hw info from the BIOS
FreeBSD
# sysctl hw.model
# CPU model
# sysctl hw
# Gives a lot of hardware information
# sysctl hw.ncpu
# number of active CPUs installed
# sysctl vm
# Memory usage
# sysctl hw.realmem
# Hardware memory
# sysctl -a | grep mem
# Kernel memory settings and info
# sysctl dev
# Configured devices
# pciconf -l -cv
# Show PCI devices
# usbdevs -v
# Show USB devices
# atacontrol list
# Show ATA devices
# camcontrol devlist -v
# Show SCSI devices
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