problem with for loop and a variable with spaces...Hi Post: 302414803

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Strip leading and trailing spaces only in a shell variable with embedded spaces

I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help. echo $SH_VAR | command_line Syntax. The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and...

2. Shell Programming and Scripting

Problem with variable expension using for loop.

Hi, I have a problem with expending variables when used in a for loop: #!/bin/ksh VAR1=aaa VAR2=bbb VAR3=ccc for ITEM in VAR1 VAR2 VAR3 do echo "${ITEM}" done This gives: VAR1 VAR2 VAR3

3. Shell Programming and Scripting

Variable problem in for loop with if statement

Hi, Again a little problem. Do not understand good why an empty string is not detected. Here is the program: #!/bin/ksh APR=`date | grep Apr | awk '{print $2$3}'` MAY=`date | grep May | awk '{print $2$3}'` JUN=`date | grep Jun | awk '{print $2$3}'` echo "Variable Apr has value:...

4. UNIX for Dummies Questions & Answers

For loop using find with file name spaces

Hello All, This question is actually for the service console of VMware ESX 3.5 but is relevant to this forum I think. I have been advised to use the following commands: for i in `find /vmfs/volumes/Test_VMFS/ -name "*.vmx"` do echo "$i" #sed -i 's/scsi1:0.present =...

5. Shell Programming and Scripting

for loop ( string having spaces )

Dear All, i facing problem to use string having spaces in for loop.. file used for FOR LOOP command.txt rpm -t -v ttm -D -r RJLL -h YELP rpm -t -v ttm -D -r RJLL -h ERRT rpm -t -v ttm -D -r RJLL -h TYYE rpm -t -v ttm -D -r RJLL -h POOL CODE using for execute above command...

6. Shell Programming and Scripting

Bourne Shell - Problem with while loop variable scope.

Hello I am having issues with a script I'm working on developing on a Solaris machine. The script is intended to find out how many times a particular user (by given userid) has logged into the local system for more than one hour today. Here is my while loop: last $user | grep -v 'sshd'...

7. Shell Programming and Scripting

Loop with Find�damn spaces!

Hi Guys, I'm trying to find all files with a particular extension and then loop some actions. The problem is that if the files have spaces in their names I get end up being each word as a separate result rather than the entire file. ext=".txt" out=".rtf" for i in $( find "$1" -name "*$ext" );...

8. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now...

9. Shell Programming and Scripting

String variable concatenation through loop problem

Hi Team!! Please can anyone tell me why the following line does not work properly? str3+=$str2 it seems that str3 variable does not keep its value in order to be concatenated in the next iteration! Thus when i print the result of the line above it returns the str2 value What i want to do is to...

10. UNIX for Dummies Questions & Answers

Awk: problem for loop through variable

Hi, input: AAA|1 my script (the function is just an example): gawk 'BEGIN{FS=OFS="|"} function repeat(str, n, rep, i){ for(i=1; i<=n; i++) rep=rep str return rep } { variable_1=repeat($1,$2) variable_2=repeat($1,$2+1) variable_3=repeat($1,$2+3) ...

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)