hello every one
I have file with following records
Code:
begin
ASX120016719
ASX190006729
ASX153406729
ASX190406759
ASX180006739
end
for each record there is ASX word then 9 digits after it (NO spaces included)
what i want is to :
1- skip ASX
2-skip first 2 digits after ASX word
3- check digits 3-5, if all zeros then ok, go to next record
4- if any digit from 3 to 5 is a number then check digit 8
if digit 8 is 1 or 2 then make digits 3-5 zeros
if digit 8 is NOT 1 or 2 then ok go to next record
According to the above records, the output should be:
Code:
begin
ASX120006719
ASX190006729
ASX150006729
ASX190406759
ASX180006739
end
i tried sed command but i could not figure the right syntax..
please how to do it
I'm declaring a variable within a Korn shell to represent the total number of records in a SAS dataset and could use a little help with the syntax. This is what I have thus far:
#!/usr/bin/ksh
RecCount = `sas -x "select count(*) from /users/abc/123/sas_dataset.sas7bdat"` (2 Replies)
I have two files one (numbers file)contains the numbers(approximately 30000) and the other file(record file) contains the records(approximately 40000)which may or may not contain the numbers from that file.
I want to seperate the records which has the field 1=(any of the number from numbers... (15 Replies)
I have a file which has about 10000 records and I need to delete about 50 records from the file. I know line numbers and am using
sed '134,1357,......d' filename > new file.
It does not seem to be working.
Please Advice (5 Replies)
hey,
I have a file with numbers in US notation (1,000,000.00) as well as european notation (1.000.000,00)
i want all the numbers to be in european notation.
the numbers are in a text file, so to prevent that the regex also changes the commas in a sentence/text i thought of:
sed 's/,/\./'... (2 Replies)
hi,
i have various csv files, the file format is as follows
Entry: "1",4,2010/08/15-10-00-00.01,,"E",,,,,,,,,120,0,"M4_","C","KEW-011-5337140-20100916163456-540097","1234567890","N N 0 ",,,"NUK 800100200",,,"NN",,,,,,,,,,,,"0000000001|0001|20150401... (2 Replies)
hello everyone
i searched the net and i could not find script for this request.
i believe sed command will do it but i'm not sure about how.
my file contains thousands of records, the following is sample:
BEGIN
ASX15001
BEGIN
ASX15000000500020101230
ASX18001020070002010123... (10 Replies)
Dear All,
I am struggling with the following task and would appreciate some help. I have a large table (file1.txt). The first column of this table contains an ID. I would like to replace the ID with a label according to a reference file.
Here is an example:
cat infile.txt
0 AJ2312 310 ... (7 Replies)
I need to replace the (*) in the fist of a list with numbers using sed for example >
this file contain a list
* linux
* computers
* labs
* questions
to >>>>
this file contain a list
1. linux
2. computers
3. labs
4. questions (7 Replies)
I have a test file a.txt
001 123 456 789
002 This is just a
001 test data
003 file.
I want to clear columns 5 and 6 if the first 3 characters are 001 using awk.
I tried following but does not work. Any suggestions?
awk 'BEGIN{OFS=FS=""} {if (substr($0,1,3)=="123") $5=" "; $6="... (20 Replies)
Hello ,
I have below files
a) File A
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<root xmlns="http://aaa/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema" version="2.0">
<project name="source">
<mapping name="m_Source">
<parameter... (3 Replies)
Discussion started by: Pratik4891
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)