Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: help needed with creating challenging bash script with creating directories
Top Forums Shell Programming and Scripting help needed with creating challenging bash script with creating directories Post 302311254 by durden_tyler on Tuesday 28th of April 2009 09:42:25 AM
Old 04-28-2009
Quote:
Originally Posted by I-1
Hi,

Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So map_1 contains map_2, map_2 contains map_3 and so forth.

Thanks for the help!
Looks like a homework question, so here's a hint: given the number "n", loop from 1 through n and create a string that represents the directory tree you want. Then use the "-p" option of "mkdir" command to create the directory tree.

Hope that helps,
tyler_durden

______________________________________________
"Only after disaster can we be resurrected."
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash and Awk for creating directories and moving files

I have a security system that FTPs the camera files to my machine, however I want to sort the pictures (taken every 30s) into directories by hour. Every picture uses the following file format. yymmddhhmmsstt.jpg (where tt is the milliseconds) I am thinking the for loop is best for file... (11 Replies)
Discussion started by: Kiint
11 Replies

2. UNIX for Dummies Questions & Answers

Help Needed with Creating Script

Hi all, I need your help in creating a script. At the moment, we run a daily procedure incorporating the following commands, which we would like within a script using the bash shell. cd /var/adm/Syslog tail -1 /var/adm/messages grep "`date '+%b %e'`" /var/adm/messages > syslog.`date... (4 Replies)
Discussion started by: wthomas
4 Replies

3. Shell Programming and Scripting

creating multiple sub-/directories using a shell script

0 Hi, I am looking for a way of creating multiple directories using the mkdir -p command in a shell script. I'm working with an Ubuntu machine and try to do something like that: #!/bin/sh ... (3 Replies)
Discussion started by: frymor
3 Replies

4. Programming

Creating a bash script that create/open database

Hi. I have two text files(tables) which include some information and I want to make some query codes using them. First of all, I want to create bash script that read this two tables, create/open database and insert data from files into database. #!/bin/bash while read line; do ... (1 Reply)
Discussion started by: rlaxodus
1 Replies

5. Shell Programming and Scripting

Script in bash wchich creating a new users...

Hi, I am a new on this forum but i like :) I need a script in bash which will be crating a new user with folder for websites. For example: I will run this program and he creating a new user(with my name) and folder whcich name like user and if i will localho/~user in browser, she show me files from... (1 Reply)
Discussion started by: puclavv
1 Replies

6. Shell Programming and Scripting

Creating an Interactive Bash Script to Analyze a PCAP

Hello Everyone, I am currently trying to write a Bash Script to call a PCAP file. The command I will use in the script will be the following: tshark -r test.pcap -T fields -e frame.number -e frame.time -e eth.src -e eth.dst -e ip.src -e ip.dst -r ip.proto -E header=y -E separator=, quote=d -E... (4 Replies)
Discussion started by: MrTuxor
4 Replies

7. Shell Programming and Scripting

Archiving and moving files into directories, creating directories, etc.

how can i move "dataName".sql.gz into a folder called 'database' and then move "$fileName".tar.gz * .htaccess into a folder called 'www' with the entire gzipped file being "$fileName".tar.gz? Is this doable or overly complex. so mydemo--2015-03-23-1500.tar.gz > database -... (5 Replies)
Discussion started by: wyclef
5 Replies

8. Shell Programming and Scripting

Need BASH Script Help to Move Files While Creating Directories

I've got this script to loop through all folders and move files that are more than 2 years old. I'm using the install command because it creates the necessary directories on the destination path and then I remove the source. I'd like to change the script to use the mv command since it is much... (4 Replies)
Discussion started by: consultant
4 Replies

9. Shell Programming and Scripting

Creating a condition on a bash script

I wrote a code to find codons in a DNA string. The only problem I have is how do I make the code only work for a file with DNA. This means the file only has the characters a,c,g,t and no white space characters. (3 Replies)
Discussion started by: germany1517
3 Replies

10. Shell Programming and Scripting

Creating bash script to process a data file based on the menu

Hey, im fairly new to unix and Im trying to make this unix project that would display a menu and do the following. MENU =========================== (p, P) Print users info (a, A) Add new user (s, S) Search user (d, D) Delete user (x,X) Exit Enter your choice: Trying to... (3 Replies)
Discussion started by: ultimaxtrd
3 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 08:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy