Thanks in advance
I have 2 files having key field in each.I would like to join both on common key.I have used join but not sucessful.
The files are attached here .
what i Want in the output is on the key field SLS OFFR .
I have used join commd but not successful.
File one
=======
SNO ... (6 Replies)
Hi,
I have got two files
1.txt
1111|apple|
2222|orange|
2.txt
1111|1234|000000000004356|
1111|1234|000000001111|
1111|1234|002000011112|
2222|5678|000000002222|
2222|9102|000000002222|
I need to merge these two so that my out put looks like below:
Search code being used should be... (4 Replies)
i would like to merge two files that have the same format but have different data.
i would like to create one output file that contains information from both the original files.:rolleyes: (2 Replies)
Hi everyone,
I have two files which will be exactly same at first. After sometime there will be inserts in one file. My problem is how to reflect these changes in second file also.
I found out that any compare and merge utility would do the job like, GNU " sdiff " command. But the... (14 Replies)
Hi,
I have two files a.txt and b.txt.
a.txt
1
2
3
4
b.txt
a
b
c
d
e
I want to generate a file c.txt by merging these two file and the resultant file would contain
c.txt
1 (4 Replies)
I have two files
file 1 containing x rows and 1 column
file 2 containing x rows and 1 column
I want to merge both the files and add a comma between the two
eg
plz guide (1 Reply)
Hello all,
I have limited experience in shell scripting. Here goes my question:
I have two directories that have same number of files with same file names i.e. consider 2 directories A and B. Both directories have files 1.txt, 2.txt......
I need to merge the file 1.txt of A with file 1.txt... (5 Replies)
Guys,
I am having little problem with getting a daily report!
The daily process that I do is as follows
1. Unload Header for the report from the systables to one unl file, say Header.unl
2. Unload the data from the required table/tables to another unl file, say Data.unl
3. Send a... (2 Replies)
Discussion started by: PikK45
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)