Sponsored Content
Homework and Emergencies Emergency UNIX and Linux Support Script to fill the file system mount with empty files to desired size Post 302731263 by ctsgnb on Wednesday 14th of November 2012 03:21:16 PM
Old 11-14-2012
what output does
Code:
df -k yourfilesystem | tail -1

give ?

Maybe this will be more reliable :
Code:
threshold=70
FStoFill=/tmp
set -- $(df -k $FStoFill | tail -1 | awk '{$1=$1;print $(NF-4),$(NF-3)}')
dd if=/dev/zero of=$FStoFill/dummy bs=1K count=$((($threshold*$1/100)-$2-1064))

Keep some space of 1064K in case threshold is set at 100% (i dont know why this 1064 number but it worked fine so...).
You should add some test on the threshold : (should not be set higher than 100%, and should not be set lower than current use)

Last edited by ctsgnb; 11-14-2012 at 06:51 PM..
This User Gave Thanks to ctsgnb For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

bash script working for small size files but not for big size files.

Hi, I have one file stat. Stat file contents are as follows: for example. H50768020040913,00260100,507680,13,0000000643,0000000643,00000,0000 H50769520040808,00260100,507695,13,0000000000,0000000000,00000,0000 H50770620040611,00260100,507706,13,0000000000,0000000000,00000,0000 Now i... (1 Reply)
Discussion started by: davidpreml
1 Replies

2. UNIX for Dummies Questions & Answers

how to mount a file system of a remote machine to local file system

Hi friends, In my case, there are serveral PCs running Linux in a LAN. I would like to to mount the directory /A_river of machine-A to the file system of another machine machine-B so that I can access files in that directory. I do not know how to do this. The situation is complicated by... (2 Replies)
Discussion started by: cy163
2 Replies

3. UNIX for Dummies Questions & Answers

Trying to empty file using > but the file size increasing when next append

AIX 5.3 / KSH I have a Java application which creates a log file a.log. I have a KSH script which does the following action cp a.log /directory2/b.log > a.log After this the file size goes to 0 as per "ls -l" Then next time when the application writes into this file, the file size... (4 Replies)
Discussion started by: firdousamir
4 Replies

4. Shell Programming and Scripting

Unix file empty.. but size is greater than zero??/

Hi, I have a file by redirecting some contents in unix shell. Even when there is no content that is being redirected, the file size still shows greater than zero. but even if there is no matching pattern the file APPRES has size greater than 0bytes. awk -f AA.awk $logfile>APPRES... (3 Replies)
Discussion started by: justchill
3 Replies

5. Solaris

Directory size larger than file system size?

Hi, We currently have an Oracle database running and it is creating lots of processes in the /proc directory that are 1000M in size. The size of the /proc directory is now reading 26T. How can this be if the root file system is only 13GB? I have seen this before we an Oracle temp file... (6 Replies)
Discussion started by: sparcman
6 Replies

6. Shell Programming and Scripting

Compare columns and rows with template, and fill empty slots.

Hi, I'm working on a script that will take the contents of a file, that is in a row and column format, and compare it to a arrangment file. Such that if there is any or all blanks in my content file, the blank will be filled with a flag and will retain the row and column configuration. Ex. ... (2 Replies)
Discussion started by: hizzle
2 Replies

7. Shell Programming and Scripting

Script to check file system size

Dears, the output of this command df -h | tr -s ' ' | cut -f5 -d' ' is capacity 24% 0% 0% 0% 0% 1% 0% 24% 24% 0% 93% 1% (4 Replies)
Discussion started by: xxmasrawy
4 Replies

8. Shell Programming and Scripting

Symbolic link to an empty file shows size 2

Hi, I have created an empty file and a symbolic link to a file. But when I issue the following commands, I am getting the output 2. stat -c "%s" linkfile du -hb linkfile Why this is happening? (4 Replies)
Discussion started by: royalibrahim
4 Replies

9. Shell Programming and Scripting

Script which fill data in XML file

Hello, I need help for writing a script that fills already generated xml file with data from oracle database and random sequences. For example if we have the following tags: <ns1:message> <ns1:messageId> </ns1:messageId> <ns1:languageCode> </ns1:languageCode>... (10 Replies)
Discussion started by: zb99
10 Replies

10. HP-UX

how to mount a file system from a solaris server into an hp-ux system

Hi all I wonder if its possible to mount on a hp-ux server a file system that was previously mounted on a solaris 10 server. The LUN is on NetApp stoarge. The problem on hp-ux I cannot do pvcreate on the lun (disk) because contains data. Any help will be appreciated FR (2 Replies)
Discussion started by: fretagi
2 Replies
mount_udfs(1M)						  System Administration Commands					    mount_udfs(1M)

NAME
mount_udfs - mount a udfs file system SYNOPSIS
mount -F udfs [generic_options] [-o specific_options] [-O] special mount_point mount -F udfs [generic_options] [-o specific_options] [-O] special | mount_point DESCRIPTION
The mount utility attaches a udfs file system to the file system hierarchy at the mount_point, which is the pathname of a directory. If mount_point has any contents prior to the mount operation, these are hidden until the file system is unmounted. If mount is invoked with either special or mount_point as the only arguments, mount searches /etc/vfstab to fill in the missing arguments, including the specific_options. See mount(1M). If special and mount_point are specified without any specific_options, the default is rw. If the directory on which a file system is to be mounted is a symbolic link, the file system is mounted on the directory to which the sym- bolic link refers, rather than on top of the symbolic link itself. OPTIONS
See mount(1M) for the list of supported generic_options. The following options are supported: -o specific_options Specify udfs file system specific options in a comma-separated list with no intervening spaces. The following spe- cific_options are available: m Mount the file system without making an entry in /etc/mnttab. remount Remount the file system as read-write. The option is used in conjunction with the rw option. A file system mounted read-only can be remounted as read-write. This option fails if the file system is not currently mounted. -O Overlay mount. Allow the file system to be mounted over an existing mount point, making the underlying file system inaccessible. If a mount is attempted on a pre-existing mount point without setting this flag, the mount fails, producing the error device busy. FILES
/etc/mnttab Table of mounted file systems /etc/vfstab List of default parameters for each file system ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWudf | +-----------------------------+-----------------------------+ SEE ALSO
fsck(1M), fsck_udfs(1M), mount(1M), mountall(1M), mount(2), mnttab(4), vfstab(4), attributes(5) DIAGNOSTICS
not super user The command is run by a non-root user. Run as root. no such device The device name specified does not exist. not a directory The specified mount point is not a directory. is not an udfs file system The device specified does not contain a udf 1.50 file system or the udfs file system module is not available. is already mounted The specified device is already in use. not a block device The device specified is not a block device. Use block device to mount. write-protected The device is read-only. is corrupted. needs checking The file system is in an inconsistent state. Run fsck. NOTES
Copy-protected files can be stored on DVD-ROM media using Universal Disk Format (UDF). Reading these copy-protected files is not possible as this involves an authentication process. Unless an authentication process between the host and the drive is completed, reading these copy-protected files after mounting and before the authentication process, returns an error. SunOS 5.10 24 Nov 2003 mount_udfs(1M)
All times are GMT -4. The time now is 07:38 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy