Hi,
I have an urgent task here. I am required to sort a flat file based on multiple columns which are based on the character position in that line. I am restricted to use the character position instead of the space and sort +1 +2 etc to do the sorting.
I understand that there is a previous... (8 Replies)
Hi all;
I'm having headache on append one line to another based on the fix position.Hope u guys can help.
All i need to do is append the line that start with '3' to a line which start with '1' and the position for line 3 that i need to append is 22.
The original file look like this:
... (2 Replies)
How to extract multiple data based on character position. I need to fetch from 7-9 and 22-26 and there is no delimiter for 22-26 since it is part of the column. The file may have more than 1000 character long.I managed to pull any one but not both
for example
test data
12345 zxc vbnmlk... (1 Reply)
i have a file (test.txt) that contains:
20799510617900000928000000005403020110315V
20799510617900000928000000005403020110316
20799510617900000928000000005403020110317
20799510617900000928000000005403020110318V
grep V test.txt > /tmp/void.log
if
then
mail -s "void" < test.txt
fi... (2 Replies)
Greetings,
We have a requirement where we need to loop in a fixed width file in linux and remove a character based on a position for every record. It would highly appreciate if someone can help to automate this.
Appreciate your time and help!
Regards (3 Replies)
I have a file as below
pema.txt
s2dhshfu dshfkdjh dshfd
rjhfjhflhflhvflxhvlxhvx vlvhx
sfjhldhfdjhldjhjhjdhjhjxhjhxjxh
sjfdhdhfldhlghldhflhflhfhldfhlsh
rjsdjh#error occured#
skjfhhfdkhfkdhbvfkdhvkjhfvkhf
sjkdfhdjfh#error occured#
my requirement is to create 3 files frm the... (8 Replies)
Hi I have a text file that I want to change some of the characters based on their position. My file contain multiple lines and characters should be counted continuously line by line. For example, I want to convert the 150th T to C. What can I do? Here is a portion of my file:... (10 Replies)
Hi,
I am unable to find the right option to extract the data in the fixed width file.
sample data
abcd1234xgyhsyshijfkfk
hujk9876 io xgla
loki8787eljuwoejroiweo
dkfj9098 dja
Search based on position 8-9="xg" and print the entire row
output
... (4 Replies)
Hi,
I have a file with multiple lines(fixed width dat file). I want to search for '02' in the positions 45-46 and if available, in that lines, I need to replace value in position 359 with blank. As I am new to unix, I am not able to figure out how to do this. Can you please help me to achieve... (9 Replies)
Hi ,
I am having a scenario where I need to split the file based on two field values. The file is a fixed length file.
ex:
AA0998703000000000000190510095350019500010005101980301
K 0998703000000000000190510095351019500020005101480 ... (4 Replies)
Discussion started by: saj
4 Replies
LEARN ABOUT SUSE
vfs_prealloc
VFS_PREALLOC(8) System Administration tools VFS_PREALLOC(8)NAME
vfs_prealloc - preallocate matching files to a predetermined size
SYNOPSIS
vfs objects = prealloc
DESCRIPTION
This VFS module is part of the samba(7) suite.
The vfs_prealloc VFS module preallocates files to a specified size each time a new file is created. This is useful in environments where
files are of a predetermined size will be written to a disk subsystem where extending file allocations is expensive.
This module is stackable.
OPTIONS
prealloc:EXT = BYTES
Preallocate all files with the extension EXT to the size specified by BYTES.
The following suffixes may be applied to BYTES:
o K - BYTES is a number of kilobytes
o M - BYTES is a number of megabytes
o G - BYTES is a number of gigabytes
EXAMPLES
A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes):
[frames]
path = /data/frames
vfs objects = prealloc
prealloc:tiff = 4M
CAVEATS
vfs_prealloc is not supported on all platforms and filesystems. Currently only XFS filesystems on Linux and IRIX are supported.
VERSION
This man page is correct for version 3.0.25 of the Samba suite.
AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
Source project similar to the way the Linux kernel is developed.
Samba 3.5 06/18/2010 VFS_PREALLOC(8)