UNIX for Dummies Questions & Answers

Hi All,

I am unable to find the command for knowing the RAM size on debian os.

Also i am unable to use the command shutdown on command line. it asks for the following options:


cloud9:~# shutdown
Usage: shutdown [-akrhHPfnc] [-t secs] time [warning message]
-a: use /etc/shutdown.allow
-k: don't really shutdown, only warn.
-r: reboot after shutdown.
-h: halt after shutdown.
-P: halt action is to turn off power.
-H: halt action is to just halt.
-f: do a 'fast' reboot (skip fsck).
-F: Force fsck on reboot.
-n: do not go through "init" but go down real fast.
-c: cancel a running shutdown.
-t secs: delay between warning and kill signal.
** the "time" argument is mandatory! (try "now") **
cloud9:~#
can any one help me...
Thanks in advance.

Regards
Gauri

You can use top command, this command will give you the memory total and free...

or

You can try prtdiag command ...

here is the link if you can't find it in your box..

http://people.redhat.com/tcallawa/prtdiag/

Regarding shutdown command, choose appropriate one depending on your need, I think the usage syntax is very clear as to which option to choose.

You can get a lot of memory related info by issuing the command

cat /proc/meminfo

As for shutdown, most systems can be shutdown with (as root)

/sbin/shutdown -h now

On many systems, this command will turn off power as well.

Thnaks for the help. but i am still unable to find the command to check the ram size. Hard disk size i can see using the df -h but what command for RAM size.

Thanks & Regards
Gauri

Code:

[root@localhost ~]# cat /proc/meminfo | head
MemTotal:       514672 kB
MemFree:         26468 kB
Buffers:         85784 kB
Cached:         129196 kB
SwapCached:          0 kB
Active:         214056 kB
Inactive:       108524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       514672 kB

Thanks a lot for every one. I got what i wanted.

Regards
Gauri

even free -m command will give the same result