With the -E flag that you are already using, the search is for a regular expression. You can include an expression so that grep will not find itself like this:-
The [o] matches the single character o which seems illogical until you recognise that the grep process will therefore not match, so it excludes itself.
You have several options separated with pipes so you pick the row if you match any of the items so you will need to do this to each part.
Two more thoughts:-
You have a search pattern of a space. Is that really what you want? I would expect much more output if that were true.
Your sort -u seems in the wrong place. Perhaps this might be better:-
I use -o comm= to strip out the headings.
You do end up with the output the other way round. Is that a problem?
I hope that this helps,
Robin
These 3 Users Gave Thanks to rbatte1 For This Post:
Hi
i've been googling a lot but can't find an answer. All I would like to know is how to find out all processes that are running on a machine.
I know ps gives all YOUR processes.
thanks (9 Replies)
Hi,
I am trying to write a script, which queries a db to get the names of processes, stores it in a file and then checks if that process is running on a remote server. However I am not getting it right, could anyone help me out.
#!/bin/sh
echo "select Address from Device where Cust =... (5 Replies)
Hi can anybody help me regarding this..
i want know the output of ps -ef with explanation.
how can we know the running processess.
this is the output of ps -elf
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
19 T root 0 0 0 0 SY ... (1 Reply)
Hello,
Please help me with a script with which I can check long running processes on the database server and the os is AIX.
Best regards,
Vishal (5 Replies)
Hello everybody ,
I launched cron to execute a task every hour but the job takes more than hour that's why I'm getting more than 1000 cron processes running at the same time !!!
My question is how to tell cron not to execute unless the job terminated in order to have only one process running .... (14 Replies)
HI
can someone help me to check the process running more than 2 hours.
I have the below command which shows the time and process id, however, I only need the processes running more than 2 hours. (8 Replies)
Hello Guys,
I need some help to find out if processes are running on remote server or not. I could do 'ssh' to do that but due to some security reasons, I need to avoid the ssh & get result from remote server.
Could you please suggest some that can be done without ssh or similar sort of... (8 Replies)
Discussion started by: UnknownGuy
8 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)