I was wondering if it was possible to call a unix command directly from a Java program during run-time. This command could very very basic e.g. "ps -ef" returned as a string, all I need is a starting place so if anyone has any suggestion or examples I would be very grateful (2 Replies)
Hi all,
i have requirement where i need to call a unix script from a JSP code. my script should list all the csv files from a directory and then should upload the file names to an oracle table (using sqlloader).
i tried using getRuntime function in JAVA to call my script and was successfully... (1 Reply)
Hi,
I am writting a script reading a liste of files from a file-list using the command while read NEW_LINE, and calling a "ksh" shell for each line.
My shell is like beside, and only the first line of the file-list of "/app/admin/file-list.txt" is actually processed. It seems that calling a... (2 Replies)
Hi all,
I am having a script ScriptA which is calling a script ScriptB in the same server and copying files to second server and have to execute one script ScriptC in the second server. THis First script ScriptA is the main script and i have to execute this process continously.
for Keeping... (2 Replies)
Hi Experts,
Basically I am a SAP programmer. I don't know much about UNIX. But I got a situation, need to use UNIX script /command in my programming.
I searched the forum and found the below code.
I would like to pass the below UNIX script in my programming code. But my programming will... (1 Reply)
I want to run the unix command in a fortran code
echo trim(val_fgsize) | awk '{split($1, a, "/"); print a}'I am trying like this but getting problems
s='echo ' // trim(val_fgsize) // '| awk '{split($1, a, "/"); print a}''
call system(s)
---------- Post updated at 05:15 PM ----------... (1 Reply)
Hi ..
I have created a sql macro, i want to execute this through ksh in putty.ie) sql.ksh will contain the macro query ,once i call this ksh ,the macro should trigger.
I am able to write a macro : for ex:
create macro macro_name
(sel * from db_tablename)
execute macro_name.
Could... (1 Reply)
The problem I am having now is calling and reading a command and The Main script reads the data file and passes the input to the two calculation scripts, and than output to a file.
1.
The Main Script
-----------------
input=inputfilepj3
output=outfilepj3
echo "*** Converting... (2 Replies)
Hi All,
Am needing advise on how to convert xls file to xlsx format on Solaris unix command line or scripting. I tried searching online but it looks like I need to either use Perl packages of Excel or Python packages or some other 3rd party tool. Problem is to install any of these will require... (2 Replies)
Discussion started by: arvindshukla81
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)
06-16-2014
Calling another Script from Command Line in UNIX
