Shell Scripting - How do u open a read only file in Unix?

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How do u open a read only file in Unix?

Total Answers and Comments: 9

Last Update: November 04, 2009

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Best Rated Answer

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Submitted by: kiranck007

"vi -R filename"

Above answer was rated as good by the following members:
sudeshnade

July 05, 2005 05:41:57

Rakesh Gautam

RE: How do u open a read only file in Unix?

vi filename
e.g vi abc.txt but you cannot write to it

easy way if file is small
cat filename and contents is display on screen

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November 04, 2005 07:04:10

Ramakrishna Choudarapu

RE: How do u open a read only file in Unix?

view <filename> is a better option. It will not allow writing to a file normally unless done forcefully like wq! or x! ...

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January 30, 2006 08:12:38

kiranck007

Member Since: January 2006 Contribution: 11

RE: How do u open a read only file in Unix?

vi -R filename

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1 0

Overall Rating: +1

August 30, 2006 12:35:57

Anuradha

RE: How do u open a read only file in Unix?

In a shell script you can open a file in read only mode by using O_RDONLY

Syntax - open(<filename> O_RDONLY)

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October 17, 2006 03:21:21

sandhiya

RE: How do u open a read only file in Unix?

more <file_name> is the best option.

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March 25, 2007 20:13:41

cmanne

Member Since: January 2006 Contribution: 49

RE: How do u open a read only file in Unix?

more <file>
cat <file>
less <file>

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June 18, 2007 06:19:39

rajugowda

RE: How do u open a read only file in Unix?

To Open read only file in Unix

Vi

or Cat

The Question is not clearly being told that which file should open means - already created file or newly creating file.

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November 07, 2008 05:03:45

UncaAlby

Member Since: October 2008 Contribution: 13

RE: How do u open a read only file in Unix?

If you mean open a file in Unix which has read-only permission

... then you open it the same way you open any other file. The system will simply prevent you from writing to it.

If you mean open a file in Unix such that you can not write to the file even though you otherwise would be allowed because you do have write permission ...

... then it depends on what mechanism you use to open the file. Others have already answered for opening with the "vi" editor. Other programs such as "emacs" or other text editors would have other ways.

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November 04, 2009 02:52:45

abrenar

Member Since: November 2009 Contribution: 3

RE: How do u open a read only file in Unix?

The best way is to open a read only file. use SUDO because you do not know what or who is the owner of the file in this scenario.

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