I currently have a statistics gathering script i run on my Linux servers. One of the stat i gather is total memory in the machine. The script is all perl with the exception of gathering the memory for that i use the following command:
Is there a way to do this with an internal perl command (modules would work too, however to install them i need to go through a change management process). I just want to make it a pure perl script, not that it will make it any better i just want to.
Hi!
I'm not a UNIX fanatic but I like using it for the
Oracle database since it's not stable in the Windows NT
environment (what is?).
Problem: Is there any command to show me the amount
of installed physical-memory in the machine? Is
there some other way to show the processes which uses... (4 Replies)
Hi all,
Im new to linux... Im in need to write a shell script to check wthr JRE in linux machine... Wtz de best way to find thru BASH?? Plz help me out to solve this issue...
Thanks (3 Replies)
I have to write Linux script to findout what kind of ilo is been installed in the given ip address either ilo/LO100 or no device found.
IP address will be given in the command line of the script.
-> With out log on to the ip address, should get the ilo type installed in that machine.
1. I... (1 Reply)
Hi.
Here's my setup:
a workstation with an X server
a CentOS server with no X server installed (development, security is not a concern)
a GUI application installed on the server
When I ssh to that machine, I get:
ssh -Xl root 192.168.x.x
Warning: untrusted X11 forwarding setup... (4 Replies)
i want user to prompt for password when ever he tries to login into solaris box using vnc software. is it possible.. each time the user tries to access a solaris box should be prompted for password.
and each user can set his own password for his session?
if all the above are possible which... (3 Replies)
I have installed solaris 10 over VM ware in windows machine. now i want to share the files from windows to solaris. how can i do so.. and pls tell if through putty i can access the solaris from windows machine without logging onto VMware. (4 Replies)
Hi,
i am trying to grab all the installed packages on linux machine,and only want to grab "Name" "Version" "Release" "Vendor" information
i am using below command to do so :
rpm -qa --info | grep -e 'Name' -e 'Version' -e 'Release' -e 'Vendor'
the output contains lot other info... (3 Replies)
Hi All,
.
I am trying to find whether Solaris 11 installed on physical server or on VMware/KVM.
I tried uname -a but it's giving only whether i installed on X86 or sparc machine.
I tried prtdiag command but it's giving below information.
command : prtdiag -v |grep "System... (2 Replies)
Discussion started by: sravani25
2 Replies
LEARN ABOUT MINIX
free
FREE(1) User Commands FREE(1)NAME
free - Display amount of free and used memory in the system
SYNOPSIS
free [options]
DESCRIPTION
free displays the total amount of free and used physical and swap memory in the system, as well as the buffers and caches used by the ker-
nel. The information is gathered by parsing /proc/meminfo. The displayed columns are:
total Total installed memory (MemTotal and SwapTotal in /proc/meminfo)
used Used memory (calculated as total - free - buffers - cache)
free Unused memory (MemFree and SwapFree in /proc/meminfo)
shared Memory used (mostly) by tmpfs (Shmem in /proc/meminfo)
buffers
Memory used by kernel buffers (Buffers in /proc/meminfo)
cache Memory used by the page cache and slabs (Cached and SReclaimable in /proc/meminfo)
buff/cache
Sum of buffers and cache
available
Estimation of how much memory is available for starting new applications, without swapping. Unlike the data provided by the cache or
free fields, this field takes into account page cache and also that not all reclaimable memory slabs will be reclaimed due to items
being in use (MemAvailable in /proc/meminfo, available on kernels 3.14, emulated on kernels 2.6.27+, otherwise the same as free)
OPTIONS -b, --bytes
Display the amount of memory in bytes.
-k, --kibi
Display the amount of memory in kibibytes. This is the default.
-m, --mebi
Display the amount of memory in mebibytes.
-g, --gibi
Display the amount of memory in gibibytes.
--tebi Display the amount of memory in tebibytes.
--pebi Display the amount of memory in pebibytes.
--kilo Display the amount of memory in kilobytes. Implies --si.
--mega Display the amount of memory in megabytes. Implies --si.
--giga Display the amount of memory in gigabytes. Implies --si.
--tera Display the amount of memory in terabytes. Implies --si.
--peta Display the amount of memory in petabytes. Implies --si.
-h, --human
Show all output fields automatically scaled to shortest three digit unit and display the units of print out. Following units are
used.
B = bytes
K = kibibyte
M = mebibyte
G = gibibyte
T = tebibyte
P = pebibyte
If unit is missing, and you have exbibyte of RAM or swap, the number is in tebibytes and columns might not be aligned with header.
-w, --wide
Switch to the wide mode. The wide mode produces lines longer than 80 characters. In this mode buffers and cache are reported in two
separate columns.
-c, --count count
Display the result count times. Requires the -s option.
-l, --lohi
Show detailed low and high memory statistics.
-s, --seconds delay
Continuously display the result delay seconds apart. You may actually specify any floating point number for delay using either .
or , for decimal point. usleep(3) is used for microsecond resolution delay times.
--si Use kilo, mega, giga etc (power of 1000) instead of kibi, mebi, gibi (power of 1024).
-t, --total
Display a line showing the column totals.
--help Print help.
-V, --version
Display version information.
FILES
/proc/meminfo
memory information
BUGS
The value for the shared column is not available from kernels before 2.6.32 and is displayed as zero.
Please send bug reports to
<procps@freelists.org>
SEE ALSO ps(1), slabtop(1), top(1), vmstat(8).
procps-ng 2016-06-03 FREE(1)