hi
i want to delete a particular character in file.
example
file name:abcsample
abc=bbbqw3/
hidh=ajjqiwio4/
xyx=hakjp/
........../
......./
i want to delete that special character (/) in abcsample file.please give the required commands for my requirement.
thank you (3 Replies)
hi
i want to delete a particular character in file.
example
file name:abcsample
abc=bbbqw3/
hidh=ajjqiwio4/
xyx=hakjp/
........../
......./
i want to delete that special character (/) in abcsample file Permnently.please give the required commands for my requirement.
required... (1 Reply)
Hello,
On Sco OpenServer 5, i want to print using the lpr command, no CUPS installed.
I print on an HP LaserJet 4050 on LAN (IP 192.168.x.x)
the printer is installed by HP Network Printer service.
it works fine, but Specials characters, like é, @ or ° print bad characters.
Is there... (5 Replies)
Hi All,
below is my data file
file.txt
$$0 ServerA LAN1 AAA IT01 04/30/2008 09:16:26
$$0 ServerB LAN1 AAA IT02 04/30/2008 09:16:26
here $ is a blank space
how to delete first 2 blank spaces in a file. (4 Replies)
I have to find the number of rows in a file and delete those many rows in another file.
For example, if I have 3 rows in a file A, i have to delete first 3 rows in anothe file B,
I have the code, it works as standalone, when I merge this with m application (c with unix), it doesnt work.
... (2 Replies)
Hello. I have the following issue: my txt file has the following format:
train/dr4/fklc0/sx175.txt
0 80282 Severe myopia contributed to Ron's inferiority complex.
train/dr4/fklc0/sx355.txt
0 42906 Dolphins are intelligent marine mammals. train/dr4/fklc0/sa2.txt
awk 'NR%2==0' test1.txt >... (4 Replies)
Hi Experts,
I have called some.txt with the following content.
oracle HYRDSRVIHUB01 pts/0 TESTIHUB 07-JUN-10 CREATE TABLE
TESTIHUB PHONE ... (12 Replies)
Hi all,
I have a file with some module names as below.
Font::AFM
Data::Grove ---> libxml-perl
Net::LDAP ---> perl-ldap
DBI
XML
....
...
....
and so on ...
The file has some lines with the character " -->" .
Now how can I cut only the last column of the line wherever "-->" is... (4 Replies)
I will appreciate if you help me here in this script in Solaris Enviroment.
Scenario:
i have 2 files :
1) /tmp/TRANSACTIONS_DAILY_20180730.txt:
201807300000000004
201807300000000005
201807300000000006
201807300000000007
201807300000000008
2)... (10 Replies)
Discussion started by: teokon90
10 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)