1. I wrote a ftp code to copy a file from unix box to another unix box. But it has clear text password in the code. Due to security constraints, clear text password in the code is not allowed. Please let me know the ways to write the code without prompting for password.
2. I tried writing scp... (0 Replies)
Ok, here's the problem. I need to copy about 200 GB from an old FreeBSD (5.2.1) server to a new Debian server. The old server's fastest port is the ethernet port. I set up an NFS server on the new machine so I can just copy the files over using regular commands/scripts etc. Thing is, I probably... (4 Replies)
Hi all,
I need a script in ksh:
1: Copy files from directory (A) to directory (B)
2: Check if files that will be copied in directory (A) have never been yet copied to (B)
3: Never copy the last created file of directory (A)
This script will run on crontab.
Thanks in advance for your... (1 Reply)
Hello
Im new to this forums, I would like some help regarding a script that I need in order to copy some files. Heres the scenario:
I need to search several files which have a particular code inside, lets say "test" all of them on different directories. I need to copy all of them on a new... (4 Replies)
hey everyone, new here
i have arch setup and i am using smbnetfs to mount some windows shares in /mnt/smbnet
what i want to do is copy files from my home dir to a dir in /mnt/smbnet but i also need it to remove files if i have deleted them from my home dir
seems that cp would be the... (8 Replies)
I need to copy files from a directory that has a lot of files in it. However I only want to copy them from a certain date. My thoughts so far are to use ls -l and to pipe this into awk and print out tokens 6 (month)and 7 (day).
$ ls -l
-rw-r--r-- 1 prodqual tst 681883 Jun 12... (2 Replies)
HI everyone,
I been to this site before for help and found my answers on other threads now I am posting my own :).
I have a list of file names with out extensions on an txt file. I need a way for the script to search on the server for each file name and copy the files over to a new directory.... (12 Replies)
Hi
i need Script to copy the contents of two files into one file
i have 2 fil X1.txt / X2.txt i need script to copy the contents of X1 and X2 In AllXfile
X1.txt
File X1
X2.txt
File X2
AllXfile.txt
File X1
File X2 (2 Replies)
Hi
I have the following script to copy files from one directory to another:
#!/bin/sh
touch -mt 201304240000 /var/tmp/ref1
touch -mt 201305152359 /var/tmp/ref2
find /moneta_collected02/in_psl -type f \( -newer /var/tmp/ref1 -a ! -newer /var/tmp/ref2 \) > file_lst
cp -pr $(< file_lst)... (6 Replies)
I need a UNIX ksh script that counts the number of files in directory, if the files exceed 20 files, then email results. I want the script to run every hour.. I don't have access to cron.. I'm some what new to UNIX. Windows guy all my career.. this is what I have so far..
#!/bin/ksh
# count.sh
... (5 Replies)
Discussion started by: PerlHaven2k
5 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)