Hello,
I would like to dual subtitutes variables.
I tried
$serv="combo"
combo_TYPE="mop"
TYPENAME="$serv_TYPE"
Now, I'd like to get "mop" from TYPENAME
echo "${${TYPENAME}}"
I have a bad substitution error
:) (1 Reply)
This is the code and I'm wondering why line 14: a = ... and line 16: b = ... is wrong.
This is the first time I've tried to use this. Please help me.
#include <stdio.h>
#include <math.h>
// The link and how the double pow is used.
//
// http://www.nextdawn.nl/c-reference/pow.php
//... (2 Replies)
hey all,
i made a simple .sh like this:
echo "<style media="screen" type="text/css">@import url("main.css");</style>"
but the output is:
<style media=screen type=text/css>@import url(main.css);</style>
i want to keep double-quotes, can anyone help me?
thanks (3 Replies)
Hi,
I have data as
"01/22/97-"aaaaaaaaaaaaaaaaa""aaa""aabbbbbbbbcccccc""zbcd""dddddddddeeeeeeeeefffffff"
I want to remove only the Consequitive double quotes and not the one which occurs single.
My O/P must be ... (2 Replies)
file1 contents:
jandoe1
johndoe1
file2 contents:
jandoe
johndoe
my output file names file3, and has contents as:
This is jandoe1
my script:
cat file1 | while read line1
cat file2 | while read line2
do
do
sed -e 's/${line1}/${line2}/g' file3 > file3
done
done (5 Replies)
Hi Froum.
I have tried in vain to find a solution for this problem - I'm trying to replace any double quotes within a quoted string with a single quote, leaving everything else as is.
I have the following data:
Before:
... (32 Replies)
Hi Team,
I have the following statement in my script
"chgrp dw $$DSSDATW5/W5DW_RUNNING.out"
Which throws the error "chgrp: 50528606DSSDATW5/W5DW_RUNNING.out: No such file or directory"
Can you please let me know what does this $$ refers to (2 Replies)
Hi All ,
We have source data file as csv file and since data could contain commas ,each attribute is quoted into double quotes.However problem is that some of the attributa data also contain double quotes which is converted to double double quote while creating csv file
XLs data :
... (2 Replies)
Hi All,
I'm unable to load the data using sql loader where there are double quotes within the double quotes As these are optionally enclosed by double quotes.
Sample Data :
"221100",138.00,"D","0019/1477","44012075","49938","49938/15043000","Television - 22" Refurbished - Airwave","Supply... (6 Replies)
Hi All,
I have made a forloop as given below.
if ]; then
echo -e "serv_AAA_DS.ldif file created and will be splitted into 8 smaller files for ldapadd \n"
sh ./file_splitter.sh
for (( w=1; w <= 8; ++w ))
do
nohup ldapadd -x -c -h PL0 -p 389 -D "$LDAP_USER" -w... (8 Replies)
Discussion started by: Kamesh G
8 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)