11-21-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear Collegue
Do anybody help me to convert this AWK script to Perl script
{
for (i = 2; i <= length ($0); i++) {
x = substr($0, i , 1)
if (c > 0) {
b = b x
if (x == "(") c++
... (2 Replies)
Discussion started by: jaganadh
2 Replies
2. Shell Programming and Scripting
Hi,
I have these lines in a unix script:
FILEONE = /<filepath1>/<filename1.txt>
FILENEW = /<filepath2>/<filename2.txt>
head -5 $FILEONE | sed '1d' > $FILENEW
PARAM1 = `cat $FILENEW | awk '{print $2;}' `
echo "Param1 Value: $PARAM1"
What's the correct syntax of the above lines if same... (2 Replies)
Discussion started by: gholdbhurg
2 Replies
3. Shell Programming and Scripting
Hi all,
Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM.
Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers.
At the moment am... (3 Replies)
Discussion started by: newbie_01
3 Replies
4. Shell Programming and Scripting
Hi,
i want to convert number 5860533159 to hexadecimal. i need to use perl.
i used
$foo = 5860533159;
$hexval3 = sprintf("%#x", $foo);
i am getting value as 0xffffffff.
i need to get value as 0x15D50A3A7. when i converted using google calculator, i got the correct value, expected... (9 Replies)
Discussion started by: asak
9 Replies
5. Shell Programming and Scripting
#!/usr/bin/perl
#**************************************************************
#
# PERL SCRIPT
# This script restarts the Application
#
#
##**************************************************************
$ENV{'IFS'} = ' ';
#open(STDERR,">&STDOUT");
#select... (2 Replies)
Discussion started by: srikoundinya
2 Replies
6. Shell Programming and Scripting
Hi
I am a novice in scripting .Please help me converting perl script into shell
my ($ref) = shift;
my $id;
my $cnt=0;
my $first =0;
my $filename ;
my $filename1 ;
FOREACH:foreach my $r (qw(RET LSH PDM )) {
$ref->{$cnt}->{num_errors} =0;
$ref->{$cnt}->{num_warnings} =0;... (2 Replies)
Discussion started by: apassi
2 Replies
7. Shell Programming and Scripting
Is there a Unix or Perl script that converts JSON files to CSV or tab delimited format? We are running AIX 6.1.
Thanks in advance! (1 Reply)
Discussion started by: warpmail
1 Replies
8. UNIX for Advanced & Expert Users
we have a CSV which i need to convert to XML using Perl or Unix shell scripting.
I was able to build this XML in oracle database. However, SQL/XML query is running for long time. Hence, I'm considering to write a Perl or shell script to generate this XML file. Basically need to build this XML... (3 Replies)
Discussion started by: laknar
3 Replies
9. Shell Programming and Scripting
Hello, I need to get few values from a XML file and output needs to be written in another file with pipe delimited format. The Header & Footer of the Pipe Delimited file will be constant.
The below is my sample XML file. I need to pull the values in between the XML tags <Operator_info to... (15 Replies)
Discussion started by: karthi1305561
15 Replies
10. Shell Programming and Scripting
HI All, I am new in shell scripting ,can any one please help me to convert this scripts from Perl to Shell.
Thank in advance.
$customer=$ARGV;
$rows=`hadoop fs -ls /ncip/$customer/|wc -l`;
if($rows==3){
print "$customer directory exists , cleaning up ! \n";
`hadoop fs -rm... (1 Reply)
Discussion started by: Atul301
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)