You can read a byte 00 from /dev/zero. Set the blocksize to 1 and dd can overwrite the specified 'block' in that file without shrinking or overwriting it otherwise(seek to skip forward in output, conv=notrunc to not shrink the file to 5 bytes)
Hi
I wounder if some one knows how to make a script to automate user adding?
When i am starting the script it will add user like 04pers00 and fowllowing untill that i'm quit.
The password will be a standard password typed in the file.
I'm unsing Sun solaris 9 on Intel
Sorry for my... (1 Reply)
Hello all,
i've written a small piece of code that will read commands from standard input and executes the commands.
Its working fine and is execting the commands well. Accepting arguments too. e.g
#mkdir <name of the directory>
The problem is that its not letting me change the directory i.e... (4 Replies)
This is my first post so hello to all of you!
I have a script in bash-3.00 that needs to execute the following:
pkgrm (to remove an existing package)
pkgadd -d ( to install a new package)
The problem is that both commands prompt me to answer either y,n or q in order to proceed with... (13 Replies)
I want to log into a remote server transfer over a new config and then backup the existing config, replace with the new config.
I am not sure if I can do this with BASH scripting.
I have set up password less login by adding my public key to authorized_keys file, it works.
I am a little... (1 Reply)
Hello!!
Is posible to automate ispell?? I have a lot of misspelled text and I want to launch a script that runs ispell choosing for example the first option, all that automatically. Is possible??
Thanks :) (4 Replies)
Dear all,
I I want to login to my Linux machine using putty and then run some script from Windows machine.we can do it after loging it and then execute the script by typing it in putty command line screen. but I want to automate it.So whenever I will fire this script,it will do the following... (4 Replies)
Hi all,
I'm new in this forum.
I'm looking for the difference between the HACMP commands with the prefix "cl" and "cli".
The first type are under /usr/es/sbin/cluster/sbin directory and the second are under /usr/es/sbin/cluster/cspoc directory.
I know that the first are called HACMP for AIX... (0 Replies)
Hi,
I am trying to count the number of times a string of letters occurs in a file for multiple unique strings of letters. Right now I can do this one at a time using the following code (in this example I am searching for the string "AAA"):
echo AAA >> outfile.txt
grep -c "AAA" -r... (4 Replies)
Hello!
Need help to write a Linux script that can be run from windows using command/Cygwin/any other way. I am new to scripting, actually i am trying to automate server health check like free disk space, memory along with few services status, if any services is not running then start services ,... (7 Replies)
Dear All,
I am relatively new to UNIX and wanted to accomplish a simple task which should be automated. That's why I need your help. I shall briefly describe what I want.
Basically, there is a process (X) (related to a particular software which I am using in my system) which automatically... (5 Replies)
Discussion started by: Samiran Dam
5 Replies
LEARN ABOUT OSF1
extendfs
extendfs(8) System Manager's Manual extendfs(8)NAME
extendfs - Extends UFS file systems
SYNOPSIS
/sbin/extendfs [- s] [disk_blocks] device_name
DESCRIPTION
Use the extendfs command to increase the storage space in a UFS file system. The file system must not be mounted when you perform this
operation. To extend a mounted (in use) UFS file system, use the mount command with the -o extend option.
The procedure for increasing the storage space of a UFS file system is as follows: Look at the contents the /etc/fstab file to identify the
disk partition that maps to the file system. Ensure that there is available storage space on the target disk as follows: If LSM is in use
on your system, use LSM commands to increase the size of the LSM volume as described in the Logical Storage Manager guide. If LSM is not
in use on your system, use the disklabel command or the diskconfig graphical user interface to check the current size and use of partitions
on the disk. If there is adequate space on an adjacent partition, use the disklabel command to write the current label to a file as fol-
lows: # disklabel -r dsk4 > d4label Edit the disklabel file to change the size of the partition on which your UFS file system resides.
Increase the number of disk blocks on the partition and decrease the disk block size of the adjacent partition by an equivalent number.
Use the disklabel command with the -R option to write the revised label to the raw disk as follows: # disklabel -R /dev/rdisk/dsk4 d4label
When the disk label is revised, extend the file system using the extendfs command. You can either use the full extent of the newly sized
partition or extend the file system in stages. The following example commands show both methods. To extend the file system to use all the
available space, you specify the disk partition on which the file system resides, as follows: # extendfs /dev/disk/dsk4g To extend the
file system to use only part of the available space, you specify a number of disk blocks, as follows: # extendfs -s 300000 /dev/disk/dsk4g
The remainder of the extended partion is reserved for future use.
You can extend a file system as many times as necessary, up to the physical limit of the storage device. When no more space is available
on the storage device, you must back up the file system using the dump command and restore the file system to a storage device that has
more available space.
Once you have extended a file system, the operation cannot be reversed except by a back up and restore operation. Use the dump command to
back up the file system. You can then reset the partition sizes manually and restore the file system to the storage device.
ERRORS
The disklabel command produces output similar to that of the newfs command. If a list of disk blocks is not displayed on the terminal, the
command has failed. Verify the partition settings and the mount status of the target file system.
The disklabel command does not permit you to overwrite a partition if it is in use. Refer to the disklabel(8) reference page for more
information on label errors.
FILES
Specifies the command path.
RELATED INFORMATION diskconfig(8), disklabel(8), mount(8), and fstab(4).
extendfs(8)