How to get system info in Linux
Here are some useful commands that you can use to find (almost) every information that you want to know about your system from the command line. Most of this commands can be run as non-privileged user, but more information can be obtained if (and should be) run as root.:
General system information:
# uname -a
Process information:
# top
(Shift-M to order the list by memory use)
Memory information:
# free -m
BIOS information:
# dmidecode | less Read more >>(UPDATE: The link is broken. Sorry)
For Distro
Ubuntu lsb_release -a
Redhat/Mandriva/Fedora cat /etc/osname_version
Full Hard ware specs
sudo or su lshw
Regards
Shashwat
August 18, 2008 at 5:53 pm
Thank you Shashwat for the tips.
I will add this info to my post.
Thanks,
Marius
nongeekboy
August 18, 2008 at 7:26 pm
There’s a standalone (read: printable report) version of Open-AudIT. http://www.open-audit.org
Mark unwin
August 19, 2008 at 11:28 am
For getting your IP address you might find the command route -n a little easier. Gives you your IP address, netmask, and gateway address (router) all in one quick shot.
Coyote
August 19, 2008 at 1:36 pm
For SUSE Linux Enterprise Server:
$cat /etc/SuSE-release
SUSE Linux Enterprise Server 10 (s390x)
VERSION = 10
PATCHLEVEL = 2
kah00na
August 19, 2008 at 3:08 pm
SUSE Linux Enterprise Server:
chkconfig – displays status of all servcies started at runtime
arch – architecture of the server (i586, i686, s390x, etc.)
dmesg – displays all kernel messages since bootup
lsmod – Show kernel modules that have been loaded
swapon -s – shows the current paging space usage
kah00na
August 19, 2008 at 3:16 pm
cat si.sh
GREP_OPTIONS=’–color=never’
# This only works for Linux and Solaris. Skip to bottom for AIX and HP-UX
if [ "`uname -s`" = "Linux" ] || [ "`uname -s`" = "SunOS" ] ; then
echo “”
echo “System Information”
echo “”
echo -n “Node Name: “;uname -n
echo -n “Operation System: “;uname -s
echo -n “Version: “;uname -r
echo -n “Hardware: “;uname -i
echo -n “Machine Type: “;uname -m
echo “”
if [ "`uname -s`" = "Linux" ] ; then
echo “Processor Information:”
cat /proc/cpuinfo | grep “vendor_id” -m 1
cat /proc/cpuinfo | grep “name” -m 1
cat /proc/cpuinfo | grep “MHz” -m 1
echo “”
echo -n “Number of Processors: “;cat /proc/cpuinfo | grep vendor_id | wc -l
echo “”
cat /proc/meminfo | grep “MemTotal\|MemFree”
echo “”
fi
if [ "`uname -s`" = "SunOS" ] ; then
echo “Processor Information:”
if [ "`uname -r`" = "5.10" ] ; then
/usr/sbin/psrinfo -vp
else
/usr/sbin/psrinfo -v
fi
echo “”
echo -n “Number of Processors: “;/usr/sbin/psrinfo -v | grep “Status of ” | wc -l
echo “”
/etc/prtconf | grep Memory
echo “”
fi
echo “IP Address:”
if [ "`uname -s`" = "SunOS" ] && [ "`uname -r`" = "5.10" ] || [ "`uname -r`" = "5.9" ] ; then
/sbin/ifconfig -a | /usr/xpg4/bin/grep -E ‘[0-9]*\.[0-9]*\.[0-9]*’ | sed ‘s/^[ \t]*//’ | /usr/xpg4/bin/grep -v “127.0.0″
echo “”
echo -n “Number of NICs: “;/sbin/ifconfig -a | /usr/xpg4/bin/grep -E ‘[0-9]*\.[0-9]*\.[0-9]*’ | sed ‘s/^[ \t]*//’ | /usr/xpg4/bin/grep -v “127.0.0″ | wc -l
else
/sbin/ifconfig -a | grep -E ‘[0-9]*\.[0-9]*\.[0-9]*’ | sed ‘s/^[ \t]*//’ | grep -v “127.0.0″
echo “”
echo -n “Number of NICs: “;/sbin/ifconfig -a | grep -E ‘[0-9]*\.[0-9]*\.[0-9]*’ | sed ‘s/^[ \t]*//’ | grep -v “”"127.0.0″ | wc -l
fi
echo “”
echo “Release Information:”
cat /etc/*release 2>/dev/null
fi
# AIX
if [ "`uname -s`" = "AIX" ] ; then
echo “”
echo “System Information”
echo “”
echo “Node Name: \c”;uname -n
echo “Operation System: \c”;uname -s
echo “Version: \c”;uname -v
echo “Release: \c”;uname -r
echo “Hardware: \c”;uname -M
echo “Machine Type: \c”;uname -p
echo “”
echo “Processor Information:”
lscfg -vpl proc0 | grep Name: | sed ‘s/^[ \t]*//’
pmcycles
echo “Number of Processors: \c”; lscfg -vp | grep proc | wc -l
fi
# HP-UX
if [ "`uname -s`" = "HP-UX" ] ; then
echo “”
echo “System Information”
echo “”
echo “Node Name: \c”;uname -n
echo “Operation System: \c”;uname -s
echo “Version: \c”;uname -r
echo “Hardware: \c”;uname -m
echo “”
echo “Processor Information:”
/usr/contrib/bin/machinfo | grep “processor model” | sed ‘s/^[ \t]*//’
/usr/contrib/bin/machinfo | grep “Clock speed” | sed ‘s/^[ \t]*//’
/usr/contrib/bin/machinfo | grep “Number of CPUs” | sed ‘s/^[ \t]*//’
fi
echo “”
echo “Summary:”
uname -a
echo “”
coolScript
August 19, 2008 at 5:45 pm
“cat /etc/debian_version” also works.
“mdadm –misc –detail /dev/md0″ gives information about a software RAID device.
“cat /proc/meminfo” gives a lot of memory information.
“cat /proc/version” is probably the best way to find out what distro you are running, in case you don’t know.
Tenzer
August 20, 2008 at 6:55 am
@coyote
Command inserted in the post.
@kah00na
I added lsmod because this command don’t has any correspondence in my initial list.
@Coolscript
I tried your script on my Archlinux, but that are some info’s that are not displayed. I will work on it to see where is the problem.
@Tenzer
I agree with you. The info in /proc are a very fast way to find the most important info about the OS and PC.
Thank you all for your suggestions.
Regards
nongeekboy
August 20, 2008 at 7:51 am
who -r shows runlevel
cat /proc/partitions show artitions even unmounted
acpi -t shows temperatures
nmap -sV shows daemons versions
kostadin
August 21, 2008 at 2:04 am
Cpuinfo Links…
Tagged your site as cpuinfo at iLinkShare!…
iLinkShare (Web 2.0 linksharing)
August 21, 2008 at 11:15 am
Ah sorry, didn’t see that you inserted route -n . Was in a hurry. Still
can’t hurt though to point out the quick and dirty. ifconfig can be a bit busy when getting someone’s homenetwork up n’ going on Linux.
Coyote
August 23, 2008 at 12:08 am
@Coyote
Well, the first version of the post didn’t had route -n. I inserted it as a result of your comment; that was the idea behind “Command inserted in the post”. Sorry for not being very clear in my answer and thanks again for the tip. One more thing, I agree with you about the “quick and dirty ifconfig”.
Regards,
Marius
nongeekboy
August 23, 2008 at 9:43 am
[...] Come ottenere informazioni su un sistema Linux: impariamo ad ottenere le più importanti informazioni dalla nostra linuxbox, per monitorare le sue prestazioni ed eventualmente migliorarle; [...]
Il meglio della settimana dal mondo Linux #1 - Geekissimo
August 31, 2008 at 5:06 pm
is there any way that i can get the info such as CPU speed, RAM, HDD, NIC in simple command?
fir
January 23, 2009 at 7:38 am
Hello fir!
I am afraid there is no such command. At least, I don’t know one. Anyway, the commands posted in this article are simple, so you could use them.
nongeekboy
January 23, 2009 at 3:04 pm
Hello there! I know this is somewhat off topic but I was
wondering which blog platform are you using for this site?
I’m getting sick and tired of WordPress because I’ve had issues with hackers
and I’m looking at alternatives for another platform. I would be fantastic if you could point me in the direction of a good platform.
Cleta
October 18, 2012 at 2:26 pm