08-18-2010
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a simple query
If we have BATCH= 081675
and incremnting it by one as
BATCH=`expr ${BATCH} + 000001`;
We can't get BATCH = 081676
but gets BATCH = 81676
Can anyone tell why i am getting this value and not the rquired one and how i could get the required one? (1 Reply)
Discussion started by: communicator
1 Replies
2. Shell Programming and Scripting
Hi,
I am using HP-UNIX.
I have a requirement as below
I have to change env twice like:
cadenv <env>
cadenv <env>
ccm start -d /dbpath
ccm tar -xvf *.tar
ccm rcv ....
mv *.tar BACKUP
but after I do the first cadenv <env> , I am unable to execute any of the later commands .
... (6 Replies)
Discussion started by: charlei
6 Replies
3. Shell Programming and Scripting
Hi
I am having a script which sets the application environment. In this script i am sourcing the applications env file, when i am debugging the script i see its executing all the environment values and all the variable values are set properply.
Once this main shell script executes, then... (4 Replies)
Discussion started by: umakanthly
4 Replies
4. Shell Programming and Scripting
Hi:
I am trying to reuse an existing shell script foo1.csh to set environment variables inside a perl script and its childern processes.
Is it possible at all to make those environment variables persistent in the main perl process and its children processes?
Do I have to create a new... (4 Replies)
Discussion started by: phil518
4 Replies
5. Shell Programming and Scripting
I have a shell script I want to run that will set environment variables based on the value of an input variable submitted when the shell script is called. For example:
$ mgenv.sh prod
This would set environment variables for prod
$ mgenv.sh test
This would set environment variables... (1 Reply)
Discussion started by: brtaylor73
1 Replies
6. Shell Programming and Scripting
Hi,
I have the below script
#------------------------------------------------------------------------------
#Set up environment variables
#------------------------------------------------------------------------------
SCRIPTS_DIR=/remedy/scripts/ServerVolumeBilling... (3 Replies)
Discussion started by: anilvaranasi_02
3 Replies
7. Shell Programming and Scripting
Hi All,
I have made a file file usercreate.sh & it has to run in tcsh env & needs some path to be set.
my script is as below.
##########################
#!/bin/csh
setenv PATH "/usr/lib/java/class"
setenv LD_LIBRARAY_PATH
###########################
but when i am ruuning my script... (1 Reply)
Discussion started by: ajaincv
1 Replies
8. Shell Programming and Scripting
greetings,
i have a sh script that calls a python script. the sh script sets an env variable BIN:
export BIN=bin64i need to get that BIN variable's value and use it within this python script. anyone know how to do this? thanx in advance. (5 Replies)
Discussion started by: crimso
5 Replies
9. Shell Programming and Scripting
Hello
I have found some piece of code to verify and then run shell script with root permission from normal user.
see : http://blog.mecworks.com/articles/2006/02/23/bash-scripting-tip-running-a-script-as-root
I have wrote two scripts using this tips.
- one to copy file from server to local... (6 Replies)
Discussion started by: jcdole
6 Replies
10. Shell Programming and Scripting
Hello All.
Good Afternoon.
I need one small help regarding setting of env variables for a particular host by getting it from the DB.
For ex :
1. I am using LOCALHOST.
2. When I run a ./hostset.sh it should pick up the Oracle home details from associated DB and set it.
Please... (1 Reply)
Discussion started by: PavanPatil
1 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)