Actually I have trying this now :
But I need to get a better syntax where a simple grep/sed command will help me to find and count any spaces/tabs between any rows (above,middle or below) and also in front and after last of any lines in a row. Can you please help me in that?
Example
Regards
Last edited by vbe; 05-08-2015 at 11:09 AM..
Reason: pressing code tags is not enough, you insert between your code...
Hi,
I am trying to do two things in my script. I will really appreciate any help in this regards.
Is there a way to delete a last line from a pipe delimited flat file if the last line is blank. If the line is not blank then do nothing.....
Is there a way to count a word that are starting... (4 Replies)
Dear All
I want to do following task. Kindly suggest.
In my script every hour one file is genarated. say xyz.txt.
Now if this file contain some data then i want to do task A and if file is blank then i want to do nothing.
Kindly help me to do this.
regards
jaydeep (5 Replies)
Hi Guys,
I have been trying to remove blank lines from a file with no success. I tried using all the following options on the file:
tr -s '\n' < abc.txt
grep -v "^$" abc.txt
sed '/^$/d' abc.txt
sed '/./!d' abc.txt
awk '/./' abc.txt
The file is a text file. (11 Replies)
Hi,
Consider a file named "testfile"
The contents of file are as below
first line added for test
second line added for test
third line added for test
fourth line added for test
fifth line added for test (5 Replies)
Hi All,
I have a file and I need to delete the lines that are blank and is starting with some characters below. Something like below:
Regular Ascii File:
Line1: AGODA1 BUSAN||SK Lord Beach 4/6/2012 4/7/2012 68060
Line2: AGODA2 BUSAN||SK Beach Hotel 4/6/2012 4/7/2012 610200
Line3: ... (4 Replies)
Hello All,
I have a file with data as below. Each line consists of 21 fields. I am not able to load them back to the database.
50733339,"834","834 ","005010X279A1","N","Y","007977163","0001 ",30,"2110D ","EB ","EB007 ","2 ","Conditional Required Data Element Miss
ing... (3 Replies)
Hi All,
How do i remove continuos blank lines from a file.
I have a file with data:
abc;
def;
ghi;
jkl;
mno;
pqr;
In the above file, there are two blank lines. I want to remove, one out of them.
My output should look like: (2 Replies)
Hi,
I am using KSH.
I am trying to check if the output file is empty or not.
I tried with ] but what i see is my file is empty but still manages to have a size of 1 instead of 0.
But my file doesnot have anything its empty.
I am not sure how to check this.
can any one help? (10 Replies)
I have a file with the following format:
X|High|2|GIC|DM||XHM|||6 Months
X|Moderate|2|GIC|DM||XHM|||6 Months
X|High|2|GCM|DM||XSF|||6 Months
X|Med|2|GCM|DM||XSF|||6
Here there are ten columns but I need to print rows having blank records in any of the rows (except for 6th,8th and 9th... (10 Replies)
Discussion started by: chatwithsaurav
10 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)