Does anyone know how to get these two output lines into one colon ':' separated line with some unix command? Maybe nawk. I've tried to read the nawk and awk man pages but I don't get it right. Are these commands the one to use?
Output from find command:
#
/sw/tools/matlab/7.0.1/man... (2 Replies)
What is the command to count lines in a files, but ignore blank lines and commented lines?
I have a file with 4 sections in it, and I want each section to be counted, not including the blank lines and comments... and then totalled at the end.
Here is an example of what I would like my... (6 Replies)
Hi
I have a file with contents like
china
india
france
japan
italy
germany
.
.
.
.
etc....
I want the output as
china|india|france|japan|italy|germany|.|.|. (3 Replies)
I have a file a.xml
some portion of the file is given below.But the file format is same.
CTYPE available_templates SYSTEM './available_templates.dtd'>
<available_templates>
<template_file name="Approve External" path="core/approve/bin"
<command_list>
<command... (1 Reply)
I want to sort lines by how many times a string occurs in each line (the most times first).
I know how to do this in two passes (add a count field in the first pass then sort on it in the second pass).
However, can it be done more optimally with a single AWK command? My AWK has improved... (11 Replies)
Korn Shell in AIX 6.1
I want to print the below shown pipe (|) separated list line by line.
line=es349889|nhb882309|ts00293|snh03524|bg578835|bg37900|rnh00297|py882201|sg175883
for i in line
do
echo "Hello $line "
done
I wanted to execute the above for loop. But i can't even set the... (3 Replies)
I have a file that needs to be parsed into multiple files every time there line contains a number 1. the problem i face is the lines are random and the file size is random. an example is that on line 4, 65, 187, 202 & 209 are number 1's so there has to be file breaks between all those to create 4... (6 Replies)
hi,
How can i count the number of lines after the first line in a flat file in unix?
Say i have a flat file with a header like:
Student Name Student ID ....
Tnx (7 Replies)
Hi Everyone,
On my Linux box I have a text file having block of few lines and this block lines separated by one blank line. I would like to format and print these lines in such a way that this entire block of lines will come as single comma separated line & again next block of lines in next... (7 Replies)
Discussion started by: gr8_usk
7 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)