10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I have a huge set of data that needs to be reformatted.
Here is a simple example to explain the process.
I have number n=5 and a input with many numbers separated with comma:
... (11 Replies)
Discussion started by: liuzhencc
11 Replies
2. Shell Programming and Scripting
Hallo Team,
I need your help. I have a file that has two colums. See sample below:
105550 0.28
105550 0.24
125550 0.28
125550 0.24
215650 0.28
215650 0.24
315550 0.28
315550 0.24
335550 0.28
335550 0.24
40555 0.21
40555 0.17
415550 0.21
415550 0.17
43555 0.21
43555 0.17 (5 Replies)
Discussion started by: kekanap
5 Replies
3. UNIX for Dummies Questions & Answers
Dear Sir,
I have file input
RGR001|108.28|-2.86489|100-120|RANGGAR
RGR002|108.071|-2.69028|80-100|RANNGAR
RGR003|108.168|-2.97053|50-80|RANNGAR
RGR007|108.192722222|-2.766138889|0-50|RANGGARI want to create files by joining each rows with each rows below
Output as below
... (4 Replies)
Discussion started by: radius
4 Replies
4. Shell Programming and Scripting
Dear all
I have a dataset (in text format,delimited by tab) which have 100 variables (say, var0-var99) and more than 100,000 observations. I want to do the following:
1. for variable var0-var49, I want to add "00" in front of each data (for example, "1" would become "001")
2. for variable... (8 Replies)
Discussion started by: littlewenwen
8 Replies
5. Shell Programming and Scripting
Y,T,,H05,6,6,0,0 -> TH05_6
D,5,BT,B -> BT_KIOSK
P,KQC222 -> KQC222
G,B,2 -> BRANI_GATE_2
fileA
TPM658 Y,T,,H05,6,6,0,0
TPM110 D,5,BT,B
TPM136 P,KQC222
TPM180 P,BQC913
TPM575 Y,B,,T05,14,14,0,0
IPM760 G,B,2
TPM011
I need to use second column
$1,$2,$3,$4.....
if first char... (6 Replies)
Discussion started by: ment0smintz
6 Replies
6. UNIX for Dummies Questions & Answers
Hi all!
my first post here, so mods -- if this should ideally be in the scripts section, please move there. Thanks!
I have data in the following format:
key1:value1 key2:value2 key3:value3
A
B
C
D
key1:value4 key2:value5 key3:value6
A1
B1
key1: ...
and so on
I want an output... (2 Replies)
Discussion started by: gnat01
2 Replies
7. Shell Programming and Scripting
i have a file in follwing format
0110
1020
1011
1032
1020
2005
2003
1050
i want the output in such a way that all non zero numbers will be converted into 1
like this
0110
1010
1011
1011
1010
1001
1001
1010 (3 Replies)
Discussion started by: vaibhavkorde
3 Replies
8. Shell Programming and Scripting
Hi everyone..
I am new here, hello.. I hope this doesn't come across to you folks as a stupid question, I'm somewhat new to scripting :)
I'm seeking some help in finding a way to manipulate data output for every two characters - example:
numbers.lst contains the following output:... (3 Replies)
Discussion started by: explicit
3 Replies
9. UNIX for Dummies Questions & Answers
Hello
I am currently having problems in mapulating a certain file which contains vaious data.
Belos is a sample content
Event=<3190>
Client IP=<151.111.11.143> DNS=<abc.sbc.com> TransCount=<139>
Client IP=<150.222.133.163> DNS=<xyz.yuu.com> TransCount=<3734>
Event=<3120>
Client... (11 Replies)
Discussion started by: khestoi
11 Replies
10. UNIX for Dummies Questions & Answers
I have a folder called {homedata}
Within this folder there are 12 subfolders 200601.......200612
Within each subfolder there are 8 sets of files
Each filename commences with A B C D E F G or H,
so {filename}* can be used.
I am trying to write a script which will from the top level
go... (1 Reply)
Discussion started by: grinder182533
1 Replies
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)