Hi Friends,
I am trying to run a sql query from shell script as below but I get "Bind variable "1" not declared" error.
1.sh shell script has following:
sDb="abc/xyz@aaa"
a="1.sql"
sqlplus -s $sDb @$a $1
1.sql file has following:
spool Result.tmp append
select cust_name from orders... (1 Reply)
Hi
I am trying to edit a csv file. Bacically I need to input a search variable and the value that must be changed in one of the fields corresponding to that searched variable.
My csv file looks like so:
1,1A,5
1,1B,2
1,1C,3
2,2A,7
2,2B,4
2,2C,0
3,3A,1
3,3B,6
3,3C,4
I want to... (4 Replies)
Hi ,
I wonder if in java I can pipe the below output of the printf into a variable:
System.out.printf(" This is a test %s\n", myVariable);
I want to keep the output of the printf command to create my history array.
Thanks. (2 Replies)
Hi all,
I want write a csh script which must be able:
1.read a file
2.assign value in file as variable
and can i use read in csh script?
thx (2 Replies)
I want to burst a report by using the page number value in the report header. Each section starts with *PAGE NO:* 1 Each section might have several pages, but the next section always starts back at 1.
So I want to find the "*PAGE NO:* 1" value and pull all lines that follow until "*PAGE NO:* 1"... (4 Replies)
I have a text file that has many lines, and for each line I need to extract different sections of text, then write several variables from the data.
I can split out the various sections by selecting their position on each line as the column sizes will never vary.
A sample of my text file is below... (2 Replies)
Hi Guys,
I have one Big txt file and i what to phrase specific part as below.
Input :-
Event
Event {
recordLength 160118,
recordType 411,
eventId 3102118,
INTERNAL_PER_RO_ME_TA {
EVVXX_TIMESTAMP_HOUR 16,
EVVXX_TIMESTAMP_MINUTE 15,
EVVXX_TIMESTAMP_SECOND 3,
... (6 Replies)
Hi folks!
Kind of a noob question... from an OLD AIX/HPUX Admin.
I am writing a script to ease use of a command; an extended aliasing if you will. What I want to do is set several variables (OPT1, OPT2, etc) with command arguments, such as --help, --list-all, etc. Later in the script, I... (5 Replies)
Discussion started by: clee
5 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)