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Full Discussion: meaning of <<!
Top Forums UNIX for Dummies Questions & Answers meaning of <<! Post 302543661 by sudharson on Monday 1st of August 2011 04:02:52 PM
Old 08-01-2011
meaning of <<!

Hi all,

I wanna know the meaning of the last word "<<! "

Code:
sudo su - user <<!

please help on this !!!!

Last edited by radoulov; 08-01-2011 at 05:35 PM.. Reason: Code tags.
 

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dir(4)							     Kernel Interfaces Manual							    dir(4)

NAME
dir - format of directories on short-name HFS file systems SYNOPSIS
Remarks This entry describes the System V-compatible directory format for the HFS file system. It is provided strictly for backward compatibility and compatibility with applications expecting a System V file system environment. It is not compatible with the similar but more general HFS directory format in which describes a format identical to that used in an HFS file system supporting long file names up to 255 bytes in length. The structure defined in should be used in conjunction with the directory(3C) routines for portability to other industry UNIX implementa- tions. DESCRIPTION
A directory behaves exactly like an ordinary file, except that no user can write into a directory. The structure of a directory entry as given in the header file is: By convention, the first two entries in each directory are for and (``dot'' and ``dot dot''). The first is an entry for the directory itself. The second is for the parent directory. The meaning of is modified for the root directory of the master file system; there is no parent, so and have the same meaning. AUTHOR
was developed by AT&T and HP. SEE ALSO
directory(3C). dir(4)
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