Hi, All
here is not a full version script, just post a sample.
#/bin/bash
read -p 'Addr: ' addr
sed 's/<Address>/'"$addr"'/' pf.mod>$1
If the input string include `/', sed will return error message. I know that s/// can be replaced with s::: or s!!!, etc, but the input var can accept... (4 Replies)
hi sirs
can u tell the difference between /var/log/syslogs and /var/adm/messages
in my working place i am having two servers.
in one servers messages file is empty and syslog file is going on increasing..
and in another servers message file is going on increasing but syslog file is... (2 Replies)
I have a requirement where i have a sql file (filetext.sql). This file contains a variable ss_code.
Now in a shell script im trying to replace the variable ss_code with a value contained in the shell script variable MTK_DC..tried the below in the script
MTK_DC="mit,cit,bit"
OUT=`awk -v... (4 Replies)
I want to scan through all the files in the folder and replace all instances of $file_X within the file with the variable $X defined in my bash script on my debian 6.0 install.
For example, if the file contains $file_dep I want it to be replaced with the value of the variable $dep defined in my... (1 Reply)
I am trying to find a line in a file ("Replace_Flag") and replace it with a variable which hold a multi lined file.
myVar=`cat myfile`
sed -e 's/Replace_Flag/'$myVar'/' /pathto/test.file
myfile:
cat
dog
boy
girl
mouse
house
test.file:
football
hockey
Replace_Flag
baseball
... (4 Replies)
i try to find way to make string concatenation in csh ( sorry this is what i have )
so i found out i can't do :
set string_buff = ""
foreach line("`cat $source_dir/$f`")
$string_buff = string_buff $line
end
how can i do string concatenation? (1 Reply)
Hi All,
Seeking for your assistance to get the records once the $2 met the condition.
Ex. file 1.txt
123455,10-Aug-2020 07:33:37 AM,2335235,1323534,12343
123232,11-Aug-2015 08:33:37 PM,4234324,1321432,34364
Output:
123455,10-Aug-2020 07:33:37 AM,2335235,1323534,12343
What i did... (5 Replies)
Discussion started by: znesotomayor
5 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)