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Top Forums Shell Programming and Scripting Very Basic Question regarding "while" loop Post 302423697 by angshuman_ag on Friday 21st of May 2010 06:02:54 PM
Old 05-21-2010
Quote:
Originally Posted by gaurav1086
Hi,

"while" reads one line at a time "sequentially" until it encounters EOF.
So if another process modifies the file before the while reads/processes the entire data, the behaviour of while loop will change.

Regards,
gaurav.

Hi,
Even I thought so. But I see that is not the behavior. I tried even this

Code:
cat itemList.txt | 
while read item
do
 set $item
 ## do operation with $item
done

In both the cases when my other program makes the itemList.txt as empty, the while loop continues to do the operation till the end. I am using CSHELL on Solaris 8
 

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SVN_ADD(3)								 1								SVN_ADD(3)

svn_add - Schedules the addition of an item in a working directory

SYNOPSIS
bool svn_add (string $path, [bool $recursive = true], [bool $force = false]) DESCRIPTION
Adds the file, directory or symbolic link at $path to the working directory. The item will be added to the repository the next time you call svn_commit(3) on the working copy. PARAMETERS
o $path - Path of item to add. Note Relative paths will be resolved as if the current working directory was the one that contains the PHP binary. To use the calling script's working directory, use realpath(3) or dirname(__FILE__). o $recursive - If item is directory, whether or not to recursively add all of its contents. Default is TRUE o $force - If true, Subversion will recurse into already versioned directories in order to add unversioned files that may be hiding in those directories. Default is FALSE RETURN VALUES
Returns TRUE on success or FALSE on failure. NOTES
Warning This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk. EXAMPLES
Example #1 svn_add(3) example In a working directory where svn status returns: $ svn status ? foobar.txt <?php svn_add('foobar.txt'); ?> ...will schedule foobar.txt for addition into the repository. SEE ALSO
SVN documentation on svn add. PHP Documentation Group SVN_ADD(3)
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