10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
#!/bin/sh
Today=date '+%Y%m%d'
for file in `ls *.csv *txt`
do
echo "Start woprking with ${file}"
if ; then
do something
elif ; then
do something
else
echo "Unkniowned file name"
... (6 Replies)
Discussion started by: digioleg54
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2. Shell Programming and Scripting
Hi,
I have a file with few values in it. I need script help to read file line by line and check:
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or
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3. Programming
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Discussion started by: jessy83
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4. Shell Programming and Scripting
I am trying to send a file from my 9000 box to a vendor using sftp and I am getting this error: Couldn't close file: Failure
Here are the results of my automated script:
Connected to yyy.com.
sftp> pwd
Remote working directory: /
sftp> cd xxxxx/yyyyy_TEST/TEST
sftp> put FILE FILETEST... (1 Reply)
Discussion started by: nickg
1 Replies
5. Shell Programming and Scripting
I want a script that will add comments to a file before check-in files. comments depend on type of files.
i have a script to list files in the directory that will be checked-in
There are xml, js, html, vm files. vm will use comments like c/c++ ( // or /*..*/)
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6. HP-UX
Hi,
I'm trying to download a compatible Oracle Client software for a HP-UX machine. I'd like to know if ...
1) HP-UX is 32 bit or 64 bit?
2) Processor type - Itanium or regular?
when I execute uname -a I get
HP-UX B.11.11 U 9000/800 728684161 unlimited-user license
Based on the... (7 Replies)
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7. Shell Programming and Scripting
i have two files as
file1:
1
2
3
file2:
a
b
c
and the output should be:
file3:
1~a
2~b
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Discussion started by: mlpathir
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8. UNIX for Advanced & Expert Users
I'm writing a gui for the core utility shred. I want to be able to warn the user if they are about to shred a file that is on a journaled file system. In order to do this, I must learn the file system type of the path they are about to shred.
Is there a way in Unix to:
1. query a specific... (3 Replies)
Discussion started by: codecellar
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9. Solaris
Greetings there,
i was trying to install an eclipse plugin on sunOS 4.x for the solaris sparc platform, and i got the following error:
/usr/project/RAServer/bin> ./RAStart.sh
Starting Agent Controller
ld.so.1: RAServer: fatal: /usr/project/RAServer/lib/libxerces-c.so.24:
unknown file type... (3 Replies)
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10. UNIX for Advanced & Expert Users
Hi all...
On all of my solaris servers (5.5.1,5.6,5.7,5.8 and one 5.9) i get this error message:
sshd: fatal: PRNG seedfile //.ssh/prng_seed is not a regular file...
Knowing that i have no way to recompile correctly the sources, how can i fix this problem?
I'm using openssh, openssl, and... (3 Replies)
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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)