may not be dumb so much as uncuddled...unless there's a reverse typo it looks like you'd be able to achieve it once you properly wrap the inline function:
You'd posted:
Did you mean to say:
Better yet:
Whatever works, works, but backticks are too easily mistaken for nonsense...or left out...
Hi,
Im trying to update some properties files with text from another file:
file1
user=xyz
file2
user=
after script
file2
user=xyz
Im using this reading the $QUARTZURL,ETC... from quartz.properties:
echo... (1 Reply)
Hi,
I need some help in extracting the Exception block between the lines
21 Feb 01:18:54:146 ERROR com.orbits.frameworks.integrationframework.ValidationException - Caught exception in validateRequest() (PID=565584)
and
21 Feb 01:18:55:149 INFO ... (0 Replies)
Hi Guys,
I am needing some help writing a shell script to replace the following in a text file
/opt/was/apps/was61
with some other path eg
/usr/blan/blah/blah.
I know that i can do it using sed or perl but just having difficulty writing the escape characters for it
All Help... (3 Replies)
Hi All,
I have a query on Perl. I have a text file which has 3 lines, i want to only replace the first line with my replaced text and keep the rest of the text. FOr eg
Before change -->
echo:a:pending
echo:b:pending
echo:c:pending
After change --->
echo:a:done
echo:b:pending... (1 Reply)
Hi all,
Very first post on this forums, hope you can help me with this scripting task.
I have a big text file with over 3000 lines, some of those lines contain some text that I need to replace, lets say for simplicity the text to be replaced in those lines is "aaa" and I need it to replace it... (2 Replies)
Hi,
I have a set of files stored in a single directory that I use to set parameters for a physics code, and I would like to streamline the process of updating them all when I change a parameter. For instance, if the files are called A2000p300ini, A2000p300sub, A2000p300run, and the text in each... (3 Replies)
Say I had a text file that contained four columns, like the following:
Mack Christopher:237 Avondale Blvd:970-791-6419:S
Ben Macdonor:30 Dragon Rd:647-288-6395:B
I'm making a loop that will replace the fourth column a line in the file with the contents of a variable 'access', but I have no... (6 Replies)
We have 2 file XML files - FILE1.XML and FILE2.xml - we need copy the contents of FILE1.XML and replace in FILE2.xml pattern "<assignedAttributeList></assignedAttributeList>"
FILE1.XML
1. <itemList>
2. <item type="Manufactured">
3. <resourceCode>431048</resourceCode>
4. ... (0 Replies)
I need to replace all filesnames in a folder as well as its content from AK6 to AK11. Eg Folder has files AK6-Create.xml, AK6-system.py etc.. the files names as well as contents should be changes to AK9-Create.xml, AK9-system.py etc
All files are xml and python scripts.
---------- Post... (0 Replies)
Hi all, I am trying to create a script to read my Windows UUIDs and create mounts in fstab. I know there are different and maybe even better ways to mount Windows partitions at boot time, but I always manually create them in fstab successfully. I do a clean install of Ubuntu often and would like to... (2 Replies)
Discussion started by: Ian Pride
2 Replies
LEARN ABOUT SUSE
rdev
RDEV(8) Linux Programmer's Manual RDEV(8)NAME
rdev - query/set image root device, RAM disk size, or video mode
SYNOPSIS
rdev [-Rrvh] [-o offset] [image [value [offset]]]
rdev [-o offset] [image [root_device [offset]]]
ramsize [-o offset] [image [size [offset]]]
vidmode [-o offset] [image [mode [offset]]]
rootflags [-o offset] [image [flags [offset]]]
DESCRIPTION
With no arguments, rdev outputs an /etc/mtab line for the current root file system. With no arguments, ramsize, vidmode, and rootflags
print usage information.
In a bootable image for the Linux kernel on i386, there are several pairs of bytes which specify the root device, the video mode, and the
size of the RAM disk. These pairs of bytes, by default, begin at offset 504 (decimal) in the kernel image:
498 Root flags
(500 and 502 Reserved)
504 RAM Disk Size
506 VGA Mode
508 Root Device
(510 Boot Signature)
rdev will change these values.
Typical values for the image parameter, which is a bootable Linux kernel image, might be:
/vmlinux
/vmunix
/boot/bzImage-2.4.0
/dev/fd0
/dev/fd1
When using the rdev command, the root_device parameter might be something like:
/dev/hda1
/dev/hdf13
/dev/sda2
/dev/sdc4
/dev/ida/c0d0p1
One may also specify the device by a comma-separated pair of decimal integers major,minor.
For the ramsize command, the size parameter specifies the size of the RAM disk in kilobytes. 2.0.x kernels and newer dynamically allocate
the ramdisk and do not need this setting.
For the rootflags command, the flags parameter contains extra information used when mounting root. Currently the only effect of these
flags is to force the kernel to mount the root filesystem in readonly mode if flags is non-zero.
For the vidmode command, the mode parameter specifies the video mode:
-3 = Prompt
-2 = Extended VGA
-1 = Normal VGA
0 = as if "0" was pressed at the prompt
1 = as if "1" was pressed at the prompt
2 = as if "2" was pressed at the prompt
n = as if "n" was pressed at the prompt
If the value is not specified, the image will be examined to determine the current settings.
OPTIONS -r Causes rdev to act like ramsize (Not relevant for 2.0.x and newer kernels).
-R Causes rdev to act like rootflags.
-v Causes rdev to act like vidmode.
-h Provides help.
BUGS
The rdev utility, when used other than to find a name for the current root device, is an ancient hack that works by patching a kernel image
at a magic offset with magic numbers. It does not work on architectures other than i386. Its use is strongly discouraged. Use a boot
loader like SysLinux or LILO instead.
HISTORY
At offset 502 there used to be the device number of the swap device (in Linux 0.12), and "rdev -s" or "swapdev" would set this. However,
since Linux 0.95 this constant is not used any longer, and the swap device is specified using the swapon(2) system call.
At offset 504 there used to be the size of the ramdisk in kilobytes. One would specify a size, and this much was grabbed off the top of
memory. In Linux 1.1.39 it became also possible to set this value on the kernel command line. In Linux 1.3.48 the ramdisk setup was
changed. Ramdisk memory is now taken from the buffer cache, so that the ramdisk can grow dynamically. The interpretation of the ramdisk
word was changed to a word of which the high order bit is a prompt flag (1: prompt for ramdisk: "VFS: Insert ramdisk floppy and press
ENTER" - this is needed with a two-floppy boot), the next bit a load flag (1: load ramdisk), and the low order 11 bits give the starting
block number of the root filesystem image (so that one can have a single floppy boot). See also linux/Documentation/ramdisk.txt.
AUTHORS
Originally by Werner Almesberger (almesber@nessie.cs.id.ethz.ch)
Modified by Peter MacDonald (pmacdona@sanjuan.UVic.CA)
rootflags support added by Stephen Tweedie (sct@dcs.ed.ac.uk)
AVAILABILITY
The rdev command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
Linux 0.99 20 November 1993 RDEV(8)