Problem in reading a file Post: 302393631

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

help me ...problem in reading a file

hi, while reading a file line by line # name of the script is scriptrd while read line do echo $line done while executing bash$ ./scriptrd if i give the input as * the output is like it displays the contents of the current directory i jus wanted it to print as *

2. Programming

problem in reading file using fread

Hi All, These are the two ways i tried to read file but i getting work with second one not with the first. char buf; // Defining space for buf ctrlfnum = fopen(filename_arr.control_fname,"r"); 1) n = fread(buf,sizeof(buf),1,ctrlfnum); ============== (not works) 2) n =...

3. Shell Programming and Scripting

File reading problem via shell script

Hi, Data file named parameter contains : DB=y Alter_def.sql Create_abc.sql SQL=y database.sql my_data.sql To read this file I use var_sql=$(awk -F= '$1 == "SQL" { print $2 }' parameter.txt) if then sql_f_name=`grep "\.sql" parameter.txt` echo $sql_f_name fi

4. Shell Programming and Scripting

problem in reading a file

i need to read record by record i use script #!/bin/ksh for i in 'cat filename' do echo $1 done but i dont get expected result i just get filename echoed on screen

5. UNIX for Dummies Questions & Answers

Intermittent problem reading from an input file.

First of all thanks to all for the good post, and the great site. I'm a noob, but I've been able to learna a lot by checking past posts. I haven't been able to make sense of a problem that I've been working on for a while, hopefully someone can help me out. The script I wrote telnets into...

6. Shell Programming and Scripting

problem in reading a record from the file

Hi Guys, I need to check whether the last column is RP, If so, then i have to second column and pass it to a select statement as sonid and fetch the value to a variable and run it. This has to be done till the last column is RW. value Fatherid sonid topid ...

7. Shell Programming and Scripting

Problem with reading from a properties file

Hi, i have a properties file a.prop where entry is like PROCESS_IDX=0 Now in my shell schript i am doing like this. #!/bin/sh . a.prop .............. -....................... while read line do # tokenize the string by ",". var=(`echo $line | tr ',' ' '`) echo $PROCESS_IDX -->...

8. Shell Programming and Scripting

Problem in reading a file content

Hi, I am reading a file line by line using read line function of while loop. Each line contains 4 fields. I want to take these 4 values in 4 variables in each iteration so that i can use them in my script. The issue here is that my awk command is returning awkward results - Here is a sample line...

9. Shell Programming and Scripting

Problem in reading file (bash)

i get a name from user first name : last name, in this format. Now i am saving this to a file. what i want is, I do not want to save any name if I already have one entry o that same name..what should i do for example user give robert fernandez this will save in file as robert:fernandez. if...

10. Shell Programming and Scripting

Problem reading file in while/read loop

I know I should be able to see a way of doing this easily, but my brain just won't engage. I have a script working on an embedded device that checks to see if an item is in a blacklist before performing some actions. At the moment the code reads thus.... while read BLACKLIST ; do ...

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)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

help me ...problem in reading a file

Discussion started by: brkavi_in

2. Programming

problem in reading file using fread

Discussion started by: arunkumar_mca

3. Shell Programming and Scripting

File reading problem via shell script

Discussion started by: Dip

4. Shell Programming and Scripting

problem in reading a file

Discussion started by: er_zeeshan05