07-02-2010
Can you post what you have ?
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Hello evreyone,
this is my first post, and to say i'm new to this is an understatement.
I know very little about perl scripts and hope some one can help me.
i'm looking to get a script that a cron job can execute.
what the script needs to to is
1) connect to a mysql database
2) go to a... (2 Replies)
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2. Shell Programming and Scripting
hello all
how can i run the java command that can eccept N numbers of args for example :
java -cp .;foo.jar myApp 1 "ww"
or
java -cp .;foo.jar myApp 1 2 3 "ww"
or
java -cp .;foo.jar myApp "args1" "args2" "args3"
Thanks (1 Reply)
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3. Shell Programming and Scripting
Net::SSH::Perl ...... how to print the output in a proper format
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4. Shell Programming and Scripting
$ grep edge test_1 |sort|uniq >result.txt
$more result.txt
edge-a-pas01.com 10.12.10.11
edge-b-pas02.com 10.12.10.12
edge-c-pas03.com 10.12.10.50
edge-d-pas03.com 10.12.10.10
how do we execute the above grep command using perl?
Thanks in advance. (3 Replies)
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Am trying to lean perl scripting in Unix OS to automate my tasks.
Please find the below perl script i have tried
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print "Please Enter the VG name to be checked:";
$A = <>;
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Hi I have a perl command that doesn't seem to be working correctly. It appears to be fine but even when i try and run it manually same thing. Can someone take a look at this and tell me what they think the problem could be?
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hi All,
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Hello
Can some help with write part of perl script
I need something like this in perl
SSH="/bin/ssh -o BatchMode=yes -o"
USER="test"
SRV="server"
SCRIPT_TO_EXEC="/tmp/test.sh" -> shell script
OUT=/tmp/out.file
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I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open())
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Hi,
I am new to perl and have a script to which i want to ensure that no matter how many ever times i execute the script it should execute only once per day. Cronjob is not a safe method as I want to built in capability inside the script. (1 Reply)
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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)