This is my input file with extra information in the HEADER and leading & trailing SPACES between PIPE delimiter.
02/04/2010 Dynamic List Display 1
--------------------------------------------------------------------------------------... (6 Replies)
Hi All,
I have space delimited file similar to the one as shown below.. I need to convert it as a pipe delimited, the values inside the pipe delimited file should be as highlighted...
AA ATIU2345098809 009697 005374
BB ATIU2345097809 005445 006518
CC ATIU9685098809 003215 003571
DD... (7 Replies)
I have a file which was pipe delimited, I need to make it tab delimited. I tried with sed but no use
cat file | sed 's/|//t/g'
The above command substituted "/t" not tab in the place of pipe.
Sample file:
abc|123|2012-01-30|2012-04-28|xyz
have to convert to:
abc 123... (6 Replies)
Hi some one please help me to remove duplicates from a pipe delimited file based on first two columns.
123|asdf|sfsd|qwrer
431|yui|qwer|opws
123|asdf|pol|njio
Here My first record and last record are duplicates.As per my requirement I want all the latest records into one file.
I want the... (12 Replies)
Hi All,
I am writing a shell script to extract oracle table into a pipe dilemited flat file. Below is my code and I have attached two files that I have abled to generate so far.
1. Table.txt ==> database extract file
2. flat.txt ==> pipe delimited after some manipulation of the original db... (5 Replies)
Hello,
I have some tab delimited files that may contain blank columns. I would like to delete the blank columns if they exist. There is no clear pattern for when a blank occurs.
I was thinking of using sed to replace instances of double tab with blank,
sed 's/\t\t//g'
All of the examples... (2 Replies)
Hi All ,
I have pipe delimiter file with 11 columns . I need to insert 4 empty columns after column 10 . and After 11 column I need to insert a column which is having the same value for all the rows .
My file
1|2|3|4|5|6|7|8|9|10|11
New file
... (11 Replies)
My sample data contains escape characters followed by delimiter. I'm stuck in writing awk comand to swap the columns. please help me out.
Sample Data: 12345678|ABN\|XYZ MED CHEM PTY. LTD.|C||100.00|22|AB"C\|Corp|"XYZ|CDEF"|
Expected Output Data: 12345678|C|ABN\|XYZ MED CHEM PTY.... (10 Replies)
Hi, I have a rquirement in unix as below .
I have a text file with me seperated by | symbol and i need to generate a excel file through unix commands/script so that each value will go to each column.
ex:
Input Text file:
1|A|apple
2|B|bottle
excel file to be generated as output as... (9 Replies)
I have a file as below
Emp1|FirstName|MiddleName|LastName|Address|Pincode|PhoneNumber
1234|FirstName1|MiddleName2|LastName3| Add1 || ADD2|123|000000000
2345|FirstName2|MiddleName3|LastName4|
Add1 || ADD2|
234|000000000
OUTPUT :
... (1 Reply)
Discussion started by: styris
1 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)