Hi I'm trying to compare 3 or more files based on similar values and outputting them into 3 columns.
For example:
file1
ABC
DEF
GHI
file2
DEF
DER
file3
ABC
DER
The output should come out like this
file1 file2 file3
ABC ABC (4 Replies)
Hello all,
I have a server that is running AIX, running a tool that converts various printstreams (AFP/Metadata) to PDF. This is done using a rexx script and an off the shelf utility.
Each report (there's around 125) uses a certain script file, it's basically a text file.
I am trying... (5 Replies)
Hi,
I'd like to find the values of certain fields in multiple csv files stored in 1 directory
based upon an input search string.
An fgrep returns the complete record, I only want certain fields.
Thanks in advance for your help.
Perry (6 Replies)
Hi All,
I have two files like below:
File1
MYFILE_28012012_1112.txt|4
MYFILE_28012012_1113.txt|51
MYFILE_28012012_1114.txt|57
MYFILE_28012012_1115.txt|57
MYFILE_28012012_1116.txt|57
MYFILE_28012012_1117.txt|57
File2
MYFILE_28012012_1110.txt|57
MYFILE_28012012_1111.txt|57... (2 Replies)
Hi,
I have file in my $datadir as below :-
SAT_1.txt
SAT_2.txt
BAT_UD.lst
BAT_DD1.lst
DUTT_1.txt
DUTT_la.txt
Expected result :-
should get all the above file in $<Filename>_file.lst
Below is my code :-
for i in SAT BAT DUTT
do
touch a.lst
cd $datadir (1 Reply)
Hello, i am new in Bash. Actually i have a directory : /home/resultfiles and inside i have these txt files:
531_1.out.res, 531_2.out.res , 531_3.out.res
532_1.out.res, 532_2.out.res , 532_3.out.res
533_1.out.res, 533_2.out.res, 533_3.out.res
All these txt files has this format :
num_q all... (3 Replies)
so my output is this:
session_closed=157
session_opened=151
session_closed=18
session_opened=17
there are two patterns here, but with different values. the two patterns are "session_opened" and "session_closed". i expect there will be many more other patterns.
what i want to do is... (8 Replies)
Discussion started by: SkySmart
8 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)