Hi,
I'm writing a script and have become stuck trying to define a variable (COMP) by adding an elapsed time (ELAPSE e.g 00:55) to a start time (START e.g 23:50).
Can anybody give me a solution as to how I can get a completion time in hh:mm from the variables above?
thanks
Richard (4 Replies)
How can I do this? Actually I have a file which contains a path
e.g.
/home/john/Music/hello.mp3
and I want to take only the filename (hello.mp3) So, I need to read the file from its end to its start till the character "/"
Is this possible?
Thanks, I am sure you'll not disappoint me here!
Oh,... (9 Replies)
Hello all,
I`ve the following problem - I cannot start inetd in any way possible:
bash-3.00# svcs inetd
STATE STIME FMRI
offline Jul_30 svc:/network/inetd:default
bash-3.00#
bash-3.00# svcadm enable -r inetd
bash-3.00# svcs inetd
STATE STIME FMRI... (6 Replies)
Hello. I'm new here and i'm new to slack (concept) as well. I made a connection for pppoe with pppoe-setup, bringed up eth0 with ifconfig but when i try pppoe-connect i get "Cannot determine ethernet address for proxy ARP" and with pppoe-start i get "child pppd process terminated". How can i make... (0 Replies)
I need to change a pattern with single quotes
# echo "serversignature: 'On'"
serversignature: 'On'
I did
# echo "serversignature: 'On'" | sed 's/.*serversignature.*/serversignature: 'Off'/'
serversignature: Off
The output I need is with single quotes. But its swallowing it.
... (2 Replies)
Dear Experts,
I wanted to plot a graph with respect to values from a file.
I'm doing it with Excel 2007, but I want to create the chart in script itself.
I searched in internet for GNUPLOt. But I couldn't understand anything.
Here is my situation. I have a file having values separated by "|".... (7 Replies)
I am trying to extract a string from a line of text. Currently I am using
grep -o 'startofstring(.........'
The string is not always the same size.
The string I'm trying to extract starts with 'test(' ends with ')'.
ex "blah,blah,blah,test(stringoftext),blah blah"
How do I... (4 Replies)
Hello,
I have been browsing through the forum, but unable to find a solution for my requirement.
I need to go through a file and search for /home/users and insert a # symbol at the start /home/users. Example output is #/home/users.
Can you please help me with the awk or sed command for... (1 Reply)
Hello
I'm using cygwin and wouldlike extract information from an xml file according specific values, but don't know how.
Let's say in a file content looks like this:
<tab>
SURNAME=Mustermann
NAME=Max
CUSTOMER SINCE= 18.01.2000
ADDRESS=Birmingham
... (2 Replies)
Discussion started by: witchblade
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)