Hi,
I need to write a shell script (ksh) to read contents starting at a specific location from one file and append the contents at specific location in another file. Please find below the contents of the source file that I need to read the contents from,
File 1
-----# more... (5 Replies)
I have a file which has following contents:
localhost_IP_SIP_1233026552455.xml
localhost_IP_SIP_1233026552460.xml
localhost_IP_SIP_1233026552467.xml
localhost_IP_SIP_1233026552759.xml
localhost_IP_SIP_1233026552969.xml
localhost_IP_SIP_1233026552975.xml ... (2 Replies)
Hi All,
Need help on this
I have 2 files
one file file1 which has several entries as :
define service{
hostgroup_name !host1,!host5,!host6,.*
service_description check_nrpe
}
define service{
hostgroup_name !host2,!host4,!host6,.*
service_description check_opt
}
another... (2 Replies)
Hi,
I am facing issue while reading data from a file in UNIX. my requirement is to compare two files and for the text pattern matching in the 1st file, replace the contents in second file by the contents of first file from start to the end and write the contents to thrid file.
i am able to... (2 Replies)
Hi Guys,
I need to read a file until I find a blank line. and in the next iteration I want to continue reading from the line I find a keyword.
For ex: my file looks like
PDS_JOB_ALIAS
CRITERIA_ITEM_TYPE
PDS_JOB_CRITERIA_ITEM
CRITERIA_ITEM_TYPE
First I want to read the file... (2 Replies)
Hi Friends,
This is the only solution to my task. So, any help is highly appreciated.
I have a file
cat input1.bed
chr1 100 200 abc
chr1 120 300 def
chr1 145 226 ghi
chr2 567 600 unix
Now, I have another file by name
input2.bed (This file is a binary file not readable by the... (7 Replies)
Hi,
I am doing something basic, but I am missing something. Im trying to read the contents of a file and taking those values and connecting to a database. However, it only connect to one (or reads in) value and then exists.
Here is what it looks like:
listname.txt
db1
db2
db3
Script:... (15 Replies)
Hi, I am trying to use an awk command to replace specific character positions on a line beginning with 80 with contents of another file.
The line beginning with 80 in file1 is as follows:
I want to replace the 000000000178800 (positions 34 - 49) on this file with the contents of... (2 Replies)
Hello,
I have two files: file1 and file2
file1 has the following info:
---
host: "localhost"
port: 3000
reporter_type: "zookeeper"
zk_hosts:
- "localhost:2181"
file2 contains an IP address (1.1.1.1)
What I want to do is replace localhost with 1.1.1.1, so that the... (4 Replies)
So I'm stumped.
First... APOLOGIES... my work is offline in an office that has zero internet connectivity, as required by our client. If need be, I could print out my script attempts and retype them here. But on the off chance... here goes.
I have a text file (file_source) of terms, each line... (3 Replies)
Discussion started by: Brusimm
3 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)