Sponsored Content
Full Discussion: Extreme Beginner
Special Forums UNIX Desktop Questions & Answers Extreme Beginner Post 302916002 by jim mcnamara on Friday 5th of September 2014 04:41:03 PM
Old 09-05-2014
Example first column of ls -l
Code:
File type: d== directory l== link
|
|
|
|
|
_
drwxrwxr-x
 ___   ___
  | ___ |
  |  |  |
  |  |  (World) other permissions  r,w,x, and -
  |  group permissions r,w,x, and -
  owner permissions: r == read, w== write, x ==execute  - == permission denied

Permission bits can also be written as octal numbers.
Code:
0 (no permission)
1 execute
2 write
3 execute + write
4 read
5 read + execute
6 read + write
7 read + write + execute

So 755 is
owner read, write, execute
group read, execute
other read, execute

Last edited by jim mcnamara; 09-05-2014 at 05:46 PM..
This User Gave Thanks to jim mcnamara For This Post:
 

3 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Beginner Help

hi guys, i have a DEl xps laptop cor 2 duo 2.2 i have vista installed on it i want to install a dual Boot UNIX on it.. can some one guide me ...cause i m tottaly new to UNIX i want to install unix on that laptop along with Vista.... thx any help would be deeply appreciated (sorry if i... (5 Replies)
Discussion started by: Farhan082
5 Replies

2. Shell Programming and Scripting

Beginner Help

I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
Discussion started by: thibodeau
5 Replies

3. UNIX for Dummies Questions & Answers

Beginner - What Should I Do First?

Hi people.... I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
Discussion started by: amit.kanade1983
3 Replies
tofrodos(1)						      General Commands Manual						       tofrodos(1)

NAME
tofrodos - Converts text files between DOS and Unix formats. SYNOPSIS
fromdos [ options ] [file...] todos [ options ] [file...] DESCRIPTION
DOS text files traditionally have carriage return and line feed pairs as their newline characters while Unix text files have the line feed as their newline character. fromdos converts text files from the DOS format to the Unix format, while todos converts text files from the Unix format to the DOS format. The programs accept multiple filenames and wildcards as their arguments. You may also use them in a pipe. If either program finds its input redirected, it will process stdin and place the output on stdout. OPTIONS
-a Always convert. If converting from DOS to Unix, this option will cause the program to remove ALL carriage returns. The default is to remove carriage returns only if they are followed by line feeds. If converting from Unix to DOS, this option will cause the program to convert ALL linefeeds to carriage return pairs. The default is to convert linefeeds only if they are not already preceded by a carriage return. -b Make a backup of original file. The original file is renamed with the original filename and a .bak extension. For example, a file called "filename.ext" becomes "filename.ext.bak". Important: the program behaves differently if it is compiled for DOS (as compared to being compiled for Windows, Linux, Mac OS X or other systems). In view of the filename restrictions present on DOS, the DOS exe- cutable will strip the original file extension, if any, from the file before appending the .bak extension. For example, "file- name.ext" becomes "filename.bak". -d Convert from DOS to Unix. This forces the program to convert the file in a particular direction. By default, if the program is named fromdos or dos2unix, it will assume that the input file is in a DOS format and convert it to a Unix format. If the program is named todos or unix2dos, it will assume that the input file is in a Unix format and convert it to a DOS format. Using the -d option forces the program to convert from a DOS format to a Unix format regardless of how the program is named. Likewise, using the -u option forces the program to convert from a Unix format to a DOS format regardless of the name of the program. -e Abort processing on any error in any file. Normally, the program will simply skip to process the next file on the command line when it encounters any errors. This option causes it to abort on errors. -f Force: convert even if the file is not writeable (read-only). By default, if fromdos or todos finds that the file does not have write permission, it will not process that file. This option forces the conversion even if the file is read-only. -h Display a short help screen on the program usage and quit. -l<logfile> Log error messages to <logfile>. Note that if your command line has an error, such as when you specify an unknown option, the error message for the command line option error will be issued to stderr instead and not logged. -o Overwrite the original file (no backup). This is the default. -p Preserve file ownership and time. On systems like Linux, the file ownership will only be preserved if the user is root, otherwise it will just set the file time and silently fail the change of file ownership. If you want a warning message when the file ownership cannot be changed, use -v. -u Convert from Unix to DOS. See the -d option above for more information. -v Verbose. -V Show version message and quit. AUTHOR
The program and its documentation are copyrighted (c) 1996-2008 by Christopher Heng. All rights reserved. They are distributed under the terms of the GNU General Public License Version 2. The latest version of tofrodos can be obtained from http://www.thefreecountry.com/tofrodos/index.shtml 2011 Version 1.7.9 tofrodos(1)
All times are GMT -4. The time now is 02:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy