Sponsored Content
Full Discussion: break while loop in BASH
Top Forums Shell Programming and Scripting break while loop in BASH Post 302403677 by alister on Saturday 13th of March 2010 08:25:36 PM
Old 03-13-2010
Change 'break' to 'exit' in the --help case.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

ksh how user can break out of loop

Hi Folks, I am trying to write a simple script which involves a potentially infinite loop repeating a number of tasks quickly. I would like to enable the user to break out of this when he/she wishes (some key stroke) but not to break out of the script (i.e. which is what happens when a user... (4 Replies)
Discussion started by: beckett
4 Replies

2. Shell Programming and Scripting

How to break the while loop???(Very Urgent)

H, I am running the following log.sh shell script. $no_of_ps=7 while do echo "hello $no_of_ps" ps_file=`tail -$no_of_ps /tmp/A380_RFS24/test.ls | head -1` no_of_ps=`expr $no_of_ps - 1` echo "package is: $ps_file" >> /tmp/A380_RFS24/log/A380_RFS24.log ps_file1=`echo $ps_file| sed... (1 Reply)
Discussion started by: sunitachoudhury
1 Replies

3. Shell Programming and Scripting

Weird loop break,- please Help

Hi all, im doing this script in which i read from a logfile line by line, my problem is this: The script was working fine until i added this statement to SSH into another machine to look for some data, it enters and retrieves the data just fine, but for some strange reason after it goes thru the... (1 Reply)
Discussion started by: sx3v1l_1n51de
1 Replies

4. Shell Programming and Scripting

How to break a loop if condition is met

I am having trouble figuring this code I want to grep a text from a file and if it match certain text it break out of the loop or it should continue searching for the text Here is what I have written but it isn't working while true f=`grep 'END OF STATUS REPORT' filename` do if ... (9 Replies)
Discussion started by: Issemael
9 Replies

5. Shell Programming and Scripting

BASH: Break line, read, break again, read again...

...when the lines use both a colon and commas to separate the parts you want read as information. The first version of this script used cut and other non-Bash-builtins, frequently, which made it nice and zippy with little more than average processor load in GNOME Terminal but, predictably, slow... (2 Replies)
Discussion started by: SilversleevesX
2 Replies

6. Shell Programming and Scripting

For loop to break apart word

notimes=5 word=excellency the word excellency contains 10 letters. 10 letters divided by 2 = 5. which means, 5 two-groups of letters are in the word excellency. i need to perform a function on each group of letters. but the only thing i can think of is the following, which i just know... (5 Replies)
Discussion started by: SkySmart
5 Replies

7. Shell Programming and Scripting

Break the outer loop

Hi I'm comparing same files names which are in different folders . The first for loop for the files in DAY1 folder and the second for loop for the files in DAY2 folder . the first IF condition is for checking whether the file names are equal the second If condtion is for checking the... (4 Replies)
Discussion started by: smile689
4 Replies

8. UNIX for Dummies Questions & Answers

Script to break up file (write new files) in bash

Hello experts, I need help writing individual files from a data matrix, with each new file being written every time there is a blank line: From this cat file.txt col1 col2 col3 6661 7771 8881 6661 7771 8881 6661 7771 8881 col1 col2 col3 3451 2221 1221... (6 Replies)
Discussion started by: torchij
6 Replies

9. Shell Programming and Scripting

Basic FOR loop with break

Oracle Linux : 6.4/bash shell In the below I want to break out of the loop when it enters the 5th iteration. #!/bin/bash for i in 1 2 3 4 5 6 do echo "$i" if echo "Oh Nooo... i = $i. I need to stop the iteration and jump out of the loop" then break fi done But, it only... (3 Replies)
Discussion started by: John K
3 Replies

10. Shell Programming and Scripting

Break in for loop

in my python script i have loop like below: for item in itemlist: if <condition>: <code> else: <code> if <condition>: if <condition>: <code> else: for type in types: if... (1 Reply)
Discussion started by: ctrld
1 Replies
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)
All times are GMT -4. The time now is 06:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy