Speed up date by using an associative array
Then when you parse for date just do...
I am not sure the sample output file is really consistent...it's not clear how to parse the numeric data. Next time show a complete output file.
i have single column which is starting with same string(many number of rows)
i have to convert each into a single row.how can i do that?
laknar
std
mes
23
55
laknar
isd
phone no
address
amount
99
I have to convert above like below.
laknar|std|mes|23|55
laknar|isd|phone... (3 Replies)
Hi all,
I need to convert this file having just one column into two column file
current file:
a
15
b
21
c
34
d
48
e
10
wanted:
a 15
b 21
c 34 (15 Replies)
Hi,
Can anyone suggest quick way to get desired output?
Sample input file content:
A 12 9
A -0.3 2.3
B 1.0 -4
C 34 1000
C -111 900
C 99 0.09
Output required:
A 12 9 -0.3 2.3
B 1.0 -4
C 34 1000 -111 900 99 0.09
Thanks (3 Replies)
Hi All,
My requisite is to split a single column of phonemes seperated by spaces into multiple rows.
my input file is:
a
dh
u
th
a
qn
ch
A
v
U
r
k
my o/p should be like:
adhu a dh u (3 Replies)
Dear fellows, I need your help.
I'm trying to write a script to convert a single column into multiple rows.
But it need to recognize the beginning of the string and set it to its specific Column number.
Each Line (loop) begins with digit (RANGE).
At this moment it's kind of working, but it... (6 Replies)
Hi .. anyone can you help me ?
i need to convert text below into multiple columns
interface; GigabitEthernet0/0/0/0
description; TRUNK_PE-D2-JT2-VPN_Gi0/0/0/0_TO_ME4-A-JKT-JT_4/1/1_1G
mtu 9212
negotiation auto
interface; GigabitEthernet0/0/0/0.11
description; tes
encapsulation;... (1 Reply)
Hi,
i am having an HDFS file which is comma seperated, i need to transpose from rows to column only the header columns
text.csv
cnt,name,place
1,hi,nz
2,hello,aus
I need
cnt,
name,
place
while using below command in hadoop getting the error
hadoop fs -fmt -1 text.csv (0 Replies)
Hello Everyone,
I am very new to the world of regular expressions. I am trying to use grep/sed for the following:
Input file is something like this and there are multiple such files:
abc
1
2
3
4
5
***END***
abc
6
7
8
9
***END***
abc
10 (2 Replies)
Discussion started by: shellnewuser
2 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)