Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
Python and Tcl - public course schedule [here]
Private courses on your site - see [here]
Please ask about maintenance training for Perl, PHP, Lua, etc
 
Moving files between Windows / DOS and Linux / Unix

Text files written on a Windows or DOS operating system use a carriage return character (ASCII decimal equivalent 13) followed by a line feed (ASCII decimal equivalent 10) as their line terminator, but on Linux, Unix and OS X systems, just the line feed character is used. And sometimes you'll find that there's just a carriage return character used - I've seen it this morning with a DreamWeaver generated Style sheet, for example.

If you're transferring text files around, you'll want / need to convert them in some way, but is you're transferring binary files (such as .jpg) , conversion will damage the content beyond redemption.

Here's a tiny utility that I use - a Perl program that converts a text file that's on a Unix / Linux / OS X box from an alien format to the local format.

#!/usr/bin/perl -p
s/\r\n?/\n/g;


Yes - that's it! Makes use of Perl's topicalisation and awk mode command line options. The source code with comments is available here. I called it cv, put it in a directory on my executable path, and made it executable ... and here's a test:

grahamellis$ od -c fiddle.txt
0000000 L i n e 1 \r \n L i n e 2 \r \n
0000020
grahamellis$ cv fiddle.txt > faddle.txt
grahamellis$ od -c faddle.txt
0000000 L i n e 1 \n L i n e 2 \n
0000016
grahamellis$


Other ways of converting ...
• if you transfer files through FTP in ASCII mode, the changes will be made during the transfer (and if you transfer a binary file in ASCII mode, you'll produce a damaged copy!)
• if you read files into certain utilities / editors, they'll convert the input for you silently and / or work in an alien mode. This applies to vim and wordpad, but notepad can't cope.
• Utilities dos2unix and unix2dos are available on some operating systems.
(written 2006-12-30, updated 2007-01-02)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A101 - Web Application Deployment - Linux -An Introduction For Users
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)
  [3791] The Kernel, Shells and Daemons. Greek Gods in computing - (2012-07-01)
  [3256] Displaying a directory or file system tree - Linux - (2011-04-22)
  [3179] Oops - I typed ci not vi, and have lost my file ... - (2011-02-21)
  [2831] Recording (a macro) in vi - (2010-06-27)
  [2636] Linux - useful tips including history and file name completion - (2010-02-15)
  [2494] Making Linux Politically correct - (2009-11-06)
  [2479] Accidentally typed ci rather than vi? - (2009-10-27)
  [2300] What does x on a linux directory mean? - (2009-07-21)
  [2299] How much space does my directory take - Linux - (2009-07-20)
  [2203] Always use su with minus. And where do programs come from? - (2009-05-27)
  [2201] Running straight from the jar, but not from a tar - (2009-05-26)
  [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23)
  [1902] sstrwxrwxrwx - Unix and Linux file permissions - (2008-11-23)
  [1897] Keeping on an even keel - (2008-11-21)
  [1893] Some Linux and Unix tips - (2008-11-18)
  [1803] FTP passive mode - a sometimes cure for upload hangs - (2008-09-20)
  [1764] Yank and Push - copy and move in vi - (2008-08-21)
  [1651] ls command - favourite options - (2008-05-23)
  [1527] Selecting file names in a shell - one word or another - (2008-02-02)
  [1438] Copy and paste / cut and paste and other vi techniques - (2007-11-20)
  [1408] Wireless hotel tips - FTP and Skype connections failing - (2007-10-26)
  [1366] awk - a powerful data extraction and manipulation tool - (2007-09-25)
  [1288] Linux run states, shell special commands, and directory structures - (2007-08-03)
  [1287] Work and play at Well House Manor - Football and Shell Shortcuts - (2007-08-02)
  [1259] Where am I and how did I get here? - (2007-07-05)
  [1068] ls -l report, Linux / Unix - types and permssions - (2007-02-06)
  [1013] Copy multiple files - confusing error message from cp - (2006-12-30)
  [984] Cardinal numbers and magic numbers - (2006-12-14)
  [749] Cottage industry or production line data handling methods - (2006-06-07)
  [711] THE home directory or MY home directory - (2006-05-06)
  [710] Linux training Glasgow, Python programming course Dundee - (2006-05-05)
  [703] Copying files and preserving ownership - (2006-04-28)
  [679] More or less on the edge of the page - (2006-04-11)
  [659] Web Application Components - (2006-03-28)
  [593] Finding where the disc space has gone - (2006-02-06)
  [431] File permissions of Linux and Unix systems - (2005-08-31)
  [430] Linux commands - some basics - (2005-08-31)
  [249] An easy way out - (2005-03-17)
  [152] Aladdin, or careful what you wish. - (2004-12-15)
  [74] pushd and popd - (2004-10-05)
  [73] vi - full circle - (2004-10-04)


Back to
Well House Manor and Beechfield House, Hotels, Melksham
Previous and next
or
Horse's mouth home
Forward to
Copy multiple files - confusing error message from cp
Some other Articles
Modernising from tables to cascading style sheets
Search engine placement - long term strategy and success
Christmas Season Piccies
Moving files between Windows / DOS and Linux / Unix
Well House Manor and Beechfield House, Hotels, Melksham
Dates, times, clickable diarys in PHP
Passing GET parameters through Apache mod_rewrite
Date conversion - PHP
Friends and family
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2019: 404 The Spa • Melksham, Wiltshire • United Kingdom • SN12 6QL
PH: 01225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/1012_Mov ... -Unix.html • PAGE BUILT: Sat May 27 16:49:10 2017 • BUILD SYSTEM: WomanWithCat