Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: [bash] IF is eating my loops
Top Forums Shell Programming and Scripting [bash] IF is eating my loops Post 302305224 by machinogodzilla on Wednesday 8th of April 2009 09:23:30 AM
Old 04-08-2009
I should have written 'leaking' not 'eating'.

Yes, my syntax was incorrect (again) after blindly following some random tutorials (P.S. and I even know why I was following them now - I had tried the loop with square bracket syntax before but the space between if and [ was missing so the whole thing wasn't working, a space...).

Thank you for your help!
Last edited by machinogodzilla; 04-08-2009 at 09:00 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

arrays and while loops in bash

hi guys, i have an array called ARRAY which has elements in it... i am trying to assign elements of ARRAY to master_array.. i get a =: command not found error.. i=0 while do ${master_array}=${ARRAY} ((i++)) done is there something i am missing? (4 Replies)
Discussion started by: npatwardhan
4 Replies

2. Shell Programming and Scripting

bash scripting: using multiple 'for loops'??

Hey guys, I'm kinda a noob at scripting. I am trying to create a script that uses multiple for loops with the lsiutility to monitor disk health on a system. The script runs, but it will continually echo an infinite number of LogVolumes when there are only 2 per virtual disk on my server. It's... (2 Replies)
Discussion started by: tank126
2 Replies

3. UNIX for Dummies Questions & Answers

A copy paste problem with loops in bash

Hello All, i have a really strange copy paste problem. When I write some loops in an editor for example: for j in 1 2 3 do echo "$j" done and I want to paste it to the shell, the result in the shell is: for j in 1 2 3; do e; other commands work fine and if a copy paste... (4 Replies)
Discussion started by: creamcheese
4 Replies

4. UNIX for Dummies Questions & Answers

Bash loops and variable scope

Hi All, I've been researching this problem and I am pretty sure that the issue is related to the while loop and the piping. There are plenty of other threads about this issue that recommend removing the pipe and using redirection. However, I haven't been able to get it working using the ssh and... (1 Reply)
Discussion started by: 1skydive
1 Replies

5. Homework & Coursework Questions

Bash if and loops help

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Your shell script should continue to execute until the user selects option 4 2. Relevant commands, code,... (2 Replies)
Discussion started by: boyboy1212
2 Replies

6. Shell Programming and Scripting

while loops and variables under bash

Hi, This is probably going to be very simple but i came across something i can't quite explain. Here is the situation: i have a list of files, which i'd like to process one by one (get the size, make some tests, whatever) and generate some statistics using different variables. Something... (5 Replies)
Discussion started by: m69w
5 Replies

7. Shell Programming and Scripting

bash loops

hello i'm writing a script and I want to use a for loop inside a while loop as following: while read line; do echo $line for i in $vrm; do echo $i done done < './contacts' when i use just the while loop it prints the lines from file ./contacts just... (13 Replies)
Discussion started by: vlm
13 Replies

8. Shell Programming and Scripting

Pipe 2 bash loops together

What is the proper way to run two bash loops in the same command? The two below loops run separately, the problem is when I pipe them I get an error that the file used for the second loop does not exist. I am not sure how to wait for the first loop to complete and then start the second. Thank... (10 Replies)
Discussion started by: cmccabe
10 Replies

9. Shell Programming and Scripting

Bash: How to use read with conditions & loops

Hello, Below I try to control that the input is good an IP : #!/bin/bash cp /home/scripts/choice_interfaces.txt /home/scripts/interfaces.txt chmod 644 /home/scripts/interfaces.txt echo -e "Please enter the network informations into the /etc/network/interfaces file, complete them below... (9 Replies)
Discussion started by: Arnaudh78
9 Replies

10. Shell Programming and Scripting

Correlation Between 3 Different Loops using Bash

I have 3 loops that I use to determine the permission level of AWS user accounts. This array lists the AWS policy ARN (Amazon Resource Name): for ((policy_index=0;policy_index<${#aws_managed_policies};++policy_index)); do aws_policy_arn="${aws_managed_policies}" ... (1 Reply)
Discussion started by: bluethundr
1 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)
All times are GMT -4. The time now is 06:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy