I think the problem is much simpler than you might think. Your choice of name for your code (test) is the name of a shell built-in in most shells and the name of a utility probably located in /bin or /usr/bin on your system and, therefore, likely will be found in your search path before a utility named test located in your current working directory.
You will probably see exactly what you were expecting to see (two copies of your test utility running) if you invoke it with:
I'm trying to install a solaris 9 patch cluster and when I try to use & to run in background it won't allow me to enter in my sudo password so it fails the install and sudo auth. Does Solaris not have screen like linux? If & will work what am I doing wrong?
sudo ./install_cluster -q &
is... (3 Replies)
I ran the Oracle 9i export command from a terminal to export out a big table using "exp andrew/password file=andrew.dmp log=andrew.log"
From the terminal I can see that the export is running as there is some output from the oracle export job. The export job is not complete yet. When i go check... (4 Replies)
I have run one shell script in background that contains a endless while loop.
I am not able to know the status of that job .
Please provide any command to know this. I have already used "ps -aef" , "jobs" to know it , but it didn't work. I am sure the process is running as it is generating a file... (8 Replies)
I've tried this a long time ago and was successful but could not remember how i did it. Tried ctrl+Z and then used bg %
could not figure what i did after to keep it no hangup -
not sure if used nohup -p pid, can u plz help me out if this can be done.
Any help will be appreciated. (12 Replies)
Hi All,
I have a script which calls a child script with a parameter to be run in the background
. childscript.ksh $a &
Can any one suggest me how do i export a variable from the child script to parent script?
Note that the child script is in background
If the child script is in... (3 Replies)
Hi guys, I have a issue with a background process, I need to update the value of a variable in that process which is running at this time and it will be running for at least 2 days.
Any idea?
I will apreciate your help. regards.
Razziel. (2 Replies)
Hi ,
I want to see all the background process that are running in unix box machine...please guide me is there any specific command for that..since I am executing some scripts at background..!!:confused: (1 Reply)
Hi, i was looking for an answer for some trouble im having runing a script in the cron, thing is, that when i run it manually it works just fine. But when cron runs it, it just doenst work. I saw a reply on a similar subject, suggesting that the . .profile worked for you, but im kind of... (9 Replies)
Hello All,
I am using Linux. I have two scripts:
inner_script.ksh
main_wrapper_calling_inner.ksh
Below is the code snippet of the main_wrapper_calling_inner.ksh:
#!/bin/ksh
ppids=() ---> Main array for process ids.
fppids=() ---> array to capture failed process ids.
pcnt=0 --->... (5 Replies)
Hi Team,
i am executing 3 scripts in background from 1 script and i want to send a message once the script gets completed.these scripts usually takes 1 hr to complete.
My sample script is below,
Vi abc.sh
sh /opt/data/Split_1.sh &
sh /opt/data/Split_2.sh &
sh /opt/data/Split_3.sh &
... (3 Replies)
Discussion started by: raju2016
3 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)