10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Friends,
Newbie to shell scripting. Currently i have used the below to sort data based on filenames and datestamp
$ printf '%s\n' *.dat* | sort -t. -k3,4
filename_1.dat.20120430.Z
filename_2.dat.20120430.Z
filename_3.dat.20120430.Z
filename_1.dat.20120501.Z
filename_2.dat.20120501.Z... (1 Reply)
Discussion started by: robertbrown624
1 Replies
2. UNIX for Dummies Questions & Answers
Hi All,
I am new to this forum....
Can neone please help me how to copy files between two time intervals i.e. I need to copy files from 6.30 to 9.30 on 5th June 09.
Any help is appreciated. (2 Replies)
Discussion started by: Pratik4891
2 Replies
3. Shell Programming and Scripting
Hi all,
this is my first post, i need to write a script to zip the files with datewise below are the log files.
-rw------- 1 root sso 85316156 May 24 22:11 core_test_smservaz_104_104_1243217459_8896
-rw------- 1 root sso 90413304 May 25 22:12 core_test_smservaz_104_104_1243303895_20912... (4 Replies)
Discussion started by: lcschandu
4 Replies
4. Solaris
Hi all,
I am trying to execute cgi scripts on solaris, but everytime i get a internal server error...
The syntax of my .cgi script is correct as ive checked..
Steps i followed
1.started apache
2.The UNIX and Linux Forums - Learn UNIX and Linux from Experts (in opera)
3.places my cgi scripts... (7 Replies)
Discussion started by: wrapster
7 Replies
5. Solaris
Hi ,
I wanted to know how to install XEN on solaris?
I have looked at virutal box but the latest release is not supporting many OS, and for my development work i need some sort of virtual systems.....
and older versions of virtual box dont run on my build of solaris (b83)!!!
so please help
... (3 Replies)
Discussion started by: wrapster
3 Replies
6. Ubuntu
Hi,
I have installed Ubuntu 5.04 on my second Hard Drive. My first HD contains windows.
When i make my 2nd HD as boot device, i see GRUB Menu (i.e. stage 2).
On trying to boot Ubuntu, I get an Error 15: File missing problem. The FS shown was FAT.
On trying to boot Windows, I am presented... (5 Replies)
Discussion started by: karthikb23
5 Replies
7. Shell Programming and Scripting
Hi all,
I was playing around with some scripts and spoilt solaris completely ..
So i reinstalled and thought of giving the password once i log in...
However i forgot all about it and went ahead installing all my drivers and particularly KDE 3.5.8 on my system..
But for kde to show up at the... (0 Replies)
Discussion started by: wrapster
0 Replies
8. Shell Programming and Scripting
I need to write a script that copies files from one directory to another that were created after "today 6:30". This script will be NOT be ran at the same time each day.
any help is appreciated. (2 Replies)
Discussion started by: jm6601
2 Replies
9. Shell Programming and Scripting
I an unix newbie and am confused about the working of "comm".
I have two files to be compared and the three columns of output after comparison should be stored a three separate files.
File abc
--------
pink
orange
green
blue
black
maroon
File xyz
---------
pink
yellow
grey... (3 Replies)
Discussion started by: manthasirisha
3 Replies
10. Shell Programming and Scripting
Hi ,
I am New to this group and would like to know if someone can help me on this issue :
We need to copy some files from a particular directory to another directory in the same order and time stamps .How can this be achieved .
For Ex :
./ABC/disk101/XYZ has 1000 files with varying... (2 Replies)
Discussion started by: shyam.appalla
2 Replies
RAM(4) Kernel Interfaces Manual RAM(4)
NAME
ram - ram disk driver
SYNOPSIS
/sys/conf/SYSTEM:
NRAM ram_size # RAM disk size (512-byte blocks)
major device number(s):
block: 3
minor device encoding:
must be zero (0)
DESCRIPTION
The ram pseudo-device provides a very fast extended memory store. It's use is intended for file systems like /tmp and applications which
need to access a reasonably large amount of data quickly.
The amount of memory dedicated to the ram device is controlled by the NRAM definition in units of 512-byte blocks. This is also patchable
in the system binary through the variable ram_size (though a patched system would have to be rebooted before any change took effect; see
adb(1)). This makes it easy to test the effects of different ram disk sizes on system performance. It's important to note that any space
given to the ram device is permanently allocated at system boot time. Dedicating too much memory can adversely affect system performance
by forcing the system to swap heavily as in a memory poor environment.
The block file accesses the ram disk via the system's buffering mechanism through a buffer sharing arrangement with the buffer cache. It
may be read and written without regard to physical disk records. There is no `raw' interface since no speed advantage is gained by such an
interface with the ram disk.
DISK SUPPORT
The ram driver does not support pseudo-disks (partitions). The special files refer to the entire `drive' as a single sequentially
addressed file.
A typical use for the ram disk would be to mount /tmp on it. Note that if this arrangement is recorded in /etc/fstab then /etc/rc will
have to be modified slightly to do a mkfs(8) on the ram disk before the standard file system checks are done.
FILES
/dev/ram block file
/dev/MAKEDEV script to create special files
/dev/MAKEDEV.local script to localize special files
SEE ALSO
hk(4), ra(4), rl(4), rk(4), rp(4), rx(4), si(4), xp(4) dtab(5), autoconfig(8)
DIAGNOSTICS
ram: no space. There is not enough memory to allocate the space needed by the ram disk. The ram disk is disabled. Any attempts to access
it will return an error.
ram: not allocated. No memory was allocated to the ram disk and an attempt was made to open it. Either not enough memory was available at
boot time or the kernel variable ram_size was set to zero.
BUGS
The ram driver is only available under 2.11BSD.
3rd Berkeley Distribution Januray 27, 1996 RAM(4)