How to read total RAM in GBs?

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Total RAM not recognised

Hi We have a redhat 4 with 8GB ram in it but free -m only recognises 3 GB of total ram please could some one help me why this happens HP syetems insight manager showing 4* 2 GB RAMS # free -m total used free shared buffers cached Mem: 3290...

2. Shell Programming and Scripting

Help with sum total number of record and total number of record problem asking

Input file SFSQW 5192.56 HNRNPK 611.486 QEQW 1202.15 ASDR 568.627 QWET 6382.11 SFSQW 4386.3 HNRNPK 100 SFSQW 500 Desired output file SFSQW 10078.86 3 QWET 6382.11 1 QEQW 1202.15 1 HNRNPK 711.49 2 ASDR 568.63 1 The way I tried:

3. Emergency UNIX and Linux Support

Grab total page read from webalizer display in html

Hi, I need a way to grab the total combines since inception, total pages read from webalizer on my centos server or any other location (as long as since inception) and display the result live on my website So with each visit it would be increasing, or perhaps live (ajax) not sure But can...

4. Shell Programming and Scripting

Calculate total space, total used space and total free space in filesystem names matching keyword

Good afternoon! Im new at scripting and Im trying to write a script to calculate total space, total used space and total free space in filesystem names matching a keyword (in this one we will use keyword virginia). Please dont be mean or harsh, like I said Im new and trying my best. Scripting...

5. Red Hat

red hat Linux 5.0 is detecting 3gb ram but physical ram is 16gb

Hi, On server 64bit Hw Arch , Linux 5.0(32bit) is installed it is showing only 3gb of ram though physical is 16gb can u give me idea why?

6. Shell Programming and Scripting

View the Server Total Ram in GB

Hello, I want to view server RAM in GB i.e 4 GB or 6 GB via command line to use it in bash script waiting Any Ideas :) Thanks :):)

7. UNIX for Dummies Questions & Answers

grep running total/ final total across multiple files

Ok, another fun hiccup in my UNIX learning curve. I am trying to count the number of occurrences of an IP address across multiple files named example.hits. I can extract the number of occurrences from the files individually but when you use grep -c with multiple files you get the output similar to...

8. HP-UX

How should I know the total RAM available on UNIX

Hi How Should I know the Total RAM available on HP-UX box?

9. UNIX for Dummies Questions & Answers

Total ram

Hi How can i find the total ram in the system? :confused:

LEARN ABOUT OPENSOLARIS

bcopy

bcopy(9F)						   Kernel Functions for Drivers 						 bcopy(9F)

NAME

       bcopy - copy data between address locations in the kernel

SYNOPSIS

       #include <sys/types.h>
       #include <sys/sunddi.h>

       void bcopy(const void *from, void *to, size_t bcount);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       from	 Source address from which the copy is made.

       to	 Destination address to which copy is made.

       bcount	 The number of bytes moved.

DESCRIPTION

       The  bcopy()  function  copies bcount bytes from one kernel address to another. If the input and output addresses overlap, the command exe-
       cutes, but the results may not be as expected.

       Note that bcopy() should never be used to move data in or out of a user buffer, because it has no provision for handling page  faults.  The
       user  address  space can be swapped out at any time, and bcopy() always assumes that there will be no paging faults. If bcopy() attempts to
       access the user buffer when it is swapped out, the system will panic. It is safe to use bcopy() to move data  within  kernel  space,  since
       kernel space is never swapped out.

CONTEXT

       The bcopy() function can be called from user, interrupt, or kernel context.

EXAMPLES

       Example 1 Copying data between address locations in the kernel:

       An  I/O	request  is  made for data stored in a RAM disk. If the I/O operation is a read request, the data is copied from the RAM disk to a
       buffer (line 8).  If it is a write request, the data is copied from a buffer to the RAM disk (line 15). bcopy() is used since both the  RAM
       disk and the buffer are part of the kernel address space.

	  1 #define RAMDNBLK 1000		 /* blocks in the RAM disk */
	  2 #define RAMDBSIZ 512		 /* bytes per block */
	  3 char ramdblks[RAMDNBLK][RAMDBSIZ];	 /* blocks forming RAM
						 /* disk
		 ...
	  4
	  5 if	 (bp->b_flags & B_READ)      /* if read request, copy data */
	  6				     /* from RAM disk data block */
	  7				     /* to system buffer */
	  8	      bcopy(&ramdblks[bp->b_blkno][0], bp->b_un.b_addr,
	  9		  bp->b_bcount);
	 10
	 11 else			     /* else write request, */
	 12				     /* copy data from a */
	 13				     /* system buffer to RAM disk */
	 14				     /* data block */
	 15	      bcopy(bp->b_un.b_addr, &ramdblks[bp->b_blkno][0],
	 16		  bp->b_bcount);

SEE ALSO

       copyin(9F), copyout(9F)

       Writing Device Drivers

WARNINGS

       The  from  and  to  addresses  must  be	within	the  kernel space. No range checking is done. If an address outside of the kernel space is
       selected, the driver may corrupt the system in an unpredictable way.

SunOS 5.11							    16 Jan 2006 							 bcopy(9F)

Shell Programming and Scripting