01-24-2014
You are using Windows CMD, which doesn't actually have proper quoting. Do you have any better shells available?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have to capture the creation date and time stamp for a file. The ls command doesn't list all the required information. I need year, month, day, hour, minute and second.
Any ideas... (1 Reply)
Discussion started by: Xenon
1 Replies
2. Shell Programming and Scripting
I'm trying to write a script that checks the DTS of a file the compares it to the current time. If greater that 60 mins has gone by and the file has not been written to alert.
So far I have the time pulled from the file but I dont know how to compare the times against a 60 min difference.
... (2 Replies)
Discussion started by: jarich
2 Replies
3. Shell Programming and Scripting
I have a directory with following files in it
ABC.000.DAT
ABC.001.DAT
ABC.002.DAT
ABC.003.DAT
I want to insert time and date stamp in file names like
ABC.000.YYYYMMDDHHMM.DAT
I able to insert the time and date stamp at the end of filename
Kindly help (1 Reply)
Discussion started by: aajmani
1 Replies
4. UNIX for Dummies Questions & Answers
Hi All,
Wondering if there is have a date added at the end of a test string. I have a hypothetical text file day one:
John
Paul
George
When the file day one is output, I'd like it to read something like this:
John 101406
Paul 101406
George 101406
Day two, when the same text file... (0 Replies)
Discussion started by: JimmyFlip
0 Replies
5. UNIX for Advanced & Expert Users
Hi,
We are using RSYNC for syncing remote directories and working great. Our requirement is to have the destination files with date/time stamp of when they're copied on to the destination server, NOT the date/time stamps of source files/directories.
As RSYNC, by default, preserving the same... (4 Replies)
Discussion started by: prvnrk
4 Replies
6. Shell Programming and Scripting
Hi,
while running the perl script i am getting this error message ,
Day '' out of range 1..31 at rsty.sh line 44
what do iam missing in the script, any suggestion
#!/usr/bin/perl
use Time::Local;
my $wday = $ARGV;
my $month = $ARGV;
# convert the month shortname into 0-11 number
if... (4 Replies)
Discussion started by: saha
4 Replies
7. Shell Programming and Scripting
I have searched several thread and not found my solution, so I am posting a new qustion.
I have a very simple script on an AIX server that FTPs 2 files to a MS FTP server. These 2 files are created on the AIX server every hour, with a static name.
I need to FTP the files to the MS server, but... (1 Reply)
Discussion started by: sknisely
1 Replies
8. Emergency UNIX and Linux Support
hi,
i have some file names. my file names are as follows:
c_abc_new.txt.xls
c_def.txt.xls
i want to append date time stamp in the below manner.
c_abc_new_YYYYMMDD_HH24MISS.txt.xls
c_def_YYYYMMDD_HH24MISS.txt.xls
check the two input file names, they differ in naming. the 1st file name... (9 Replies)
Discussion started by: Little
9 Replies
9. Shell Programming and Scripting
Hi Folks,
Need a clarification on files with date and time stamp.
Here is my requirement. There is a file created everyday with the following format "file.txt.YYYYMMDDHHMMSS".
Now i need to check for this file and if it is available then i need to do some task to the file.
I tried... (6 Replies)
Discussion started by: jayadanabalan
6 Replies
10. Shell Programming and Scripting
I am developing one script which will take log file name, output file name, date, hour and minute as an argument and based on these inputs, the script will scan and capture all the error(s) that have been triggered from a given time. Example: script should capture all the error after 13:50 on Jan... (2 Replies)
Discussion started by: ROMA3
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)