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1. Shell Programming and Scripting
we have 4000 html pages that need an email address changed.
eg) company@yahoo.com to company@hotmail.com
we only want the file modified date to be changed when there has been a change to the file.
Should I be using grep?
I fairly new to UNIX and was told to using something like... (2 Replies)
Discussion started by: mchelle_99
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2. UNIX for Dummies Questions & Answers
Hi guys,
I got one problem which I definetily no idea.
What would the physical address be for virtual address?
1) 2ABC
2) 3F4B
Here is the page table:see attached
Thank you sos sososososso much!! (0 Replies)
Discussion started by: lemon_06
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3. Solaris
Is it possible to restrict physical memory in solaris zone with zone.max-locked-memory just like we can do with rcapd ? I do not want to used rcapd (1 Reply)
Discussion started by: fugitive
1 Replies
4. Programming
I need some help to write a C++ code that read and write the register of a sequencer. I have to make a code that relate the objects with the physical address but I am a bit confuse. Could someone suggest me how to proceed? in which parts do I split the code?
thanks (1 Reply)
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5. AIX
Hello
How do I deternine the physical location of an ethernet port, based on the hardware address?
I have 4 ports on a 9133-55A
ent0 05-08
ent1 05-09
ent2 07-08
ent3 07-09
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Discussion started by: mhenryj
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6. Solaris
Hi,
I need help to add new route:
10.252.0.138, GW 10.252.0.129 to e1000g1
and
10.252.0.10, GW 10.252.0.1 to e1000g2
tnx (4 Replies)
Discussion started by: mehrdad68
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7. Solaris
Hi,
Im working on Solaris 9 on SPARC-32 bit running on an Ultra-80, and I have to find out the following:-
1. Total Physical Memory in the system(total RAM).
2. Available Physical Memory(i.e. RAM Usage)
3. Total (Logical) Memory in the system
4. Available (Logical) Memory.
I know... (4 Replies)
Discussion started by: 0ktalmagik
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8. Solaris
what is the command to find the physical memory in soalris OS and how to find whether paging is happening or not ? (2 Replies)
Discussion started by: jayaramanit
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9. AIX
Hi all
I need command to give logical and physical IP Address for my machine.
thank you (1 Reply)
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10. UNIX for Dummies Questions & Answers
It is just a general question....is there a limit on the memory? I am looking into a process to store image files on the unix server which will be accessed by the application, and I just wonder if there is any limit regarding the physical or virtual memory. I am very new to unix, so thanks for... (1 Reply)
Discussion started by: cchien
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mem(7D) Devices mem(7D)
NAME
mem, kmem, allkmem - physical or virtual memory access
SYNOPSIS
/dev/mem
/dev/kmem
/dev/allkmem
DESCRIPTION
The file /dev/mem is a special file that provides access to the physical memory of the computer.
The file /dev/kmem is a special file that provides access to the virtual address space of the operating system kernel, excluding memory
that is associated with an I/O device.
The file /dev/allkmem is a special file that provides access to the virtual address space of the operating system kernel, including memory
that is associated with an I/O device. You can use any of these devices to examine and modify the system.
Byte addresses in /dev/mem are interpreted as physical memory addresses. Byte addresses in /dev/kmem and /dev/allkmem are interpreted as
kernel virtual memory addresses. A reference to a non-existent location returns an error. See ERRORS for more information.
The file /dev/mem accesses physical memory; the size of the file is equal to the amount of physical memory in the computer. This size may
be larger than 4GB on a system running the 32-bit operating environment. In this case, you can access memory beyond 4GB using a series of
read(2) and write(2) calls, a pread64() or pwrite64() call, or a combination of llseek(2) and read(2) or write(2).
ERRORS
EFAULT Occurs when trying to write(2) a read-only location (allkmem), read(2) a write-only location (allkmem), or read(2) or
write(2) a non-existent or unimplemented location (mem, kmem, allkmem).
EIO Occurs when trying to read(2) or write(2) a memory location that is associated with an I/O device using the /dev/kmem spe-
cial file.
ENXIO Results from attempting to mmap(2) a non-existent physical (mem) or virtual (kmem, allkmem) memory address.
FILES
/dev/mem Provides access to the computer's physical memory.
/dev/kmem Provides access to the virtual address space of the operating system kernel, excluding memory that is associated with an
I/O device.
/dev/allkmem Provides access to the virtual address space of the operating system kernel, including memory that is associated with an
I/O device.
SEE ALSO
llseek(2), mmap(2), read(2), write(2)
WARNINGS
Using these devices to modify (that is, write to) the address space of a live running operating system or to modify the state of a
hardware device is extremely dangerous and may result in a system panic if kernel data structures are damaged or if device state is
changed.
SunOS 5.10 18 Feb 2002 mem(7D)