11-27-2007
Parse a string in XML file using shell script
Hi Matrixmadhan,
Sorry I don't know how to use the code tags. I'm just new here. I have another script tail.sh wherein I get the result of the cdr.txt. It gets the last CDR processed before CDR*.tmp which is the current CDR being processed. I don't know if I did the right thing to create a seperate script which is tail.sh to get the last complete CDR. CDR*.tmp should not be processed by the script since it's not yet completed. Hope you understand my explanation. Everytime there's a new complete CDR, the script you created should process it. Thanks again!
cat tail.sh
ls -ltr | grep CDR | tail -2 | nawk '{print $9}' > cdrfile.txt
sed -n 1p cdrfile.txt > cdr.txt
if I run tail.sh, the output of cdr.txt:
CDR3310011.7 ##### this is the CDR that the script should process, the last completed CDR. Then if there's a new CDR completed, the script should process it again and append to a file.
cdrs:
-rw-r----- 1 root transfer 5243297 Oct 27 10:39 CDR3310010.4
-rw-r----- 1 root transfer 5243090 Oct 27 10:47 CDR3310010.5
-rw-r----- 1 root transfer 5242988 Oct 27 10:54 CDR3310010.6
-rw-r----- 1 root transfer 5243269 Oct 27 11:02 CDR3310010.7
drwxrwx--- 2 root stats 24576 Oct 27 11:05 stats
-rw-r----- 1 root transfer 5243317 Oct 27 11:09 CDR3310011
-rw-r----- 1 root transfer 5242906 Oct 27 11:16 CDR3310011.1
-rw-r----- 1 root transfer 5243095 Oct 27 11:23 CDR3310011.2
-rw-r----- 1 root transfer 5243178 Oct 27 11:30 CDR3310011.3
-rw-r----- 1 root transfer 5242963 Oct 27 11:38 CDR3310011.4
-rw-r----- 1 root transfer 5243133 Oct 27 11:45 CDR3310011.5
-rw-r----- 1 root transfer 5243044 Oct 27 11:52 CDR3310011.6
-rw-r----- 1 root transfer 5243054 Oct 27 11:59 CDR3310011.7
-rw-r----- 1 root transfer 272109 Oct 27 12:00 CDR3310011.tmp
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LEARN ABOUT PHP
clearstatcache
CLEARSTATCACHE(3) 1 CLEARSTATCACHE(3)
clearstatcache - Clears file status cache
SYNOPSIS
void clearstatcache ([bool $clear_realpath_cache = false], [string $filename])
DESCRIPTION
When you use stat(3), lstat(3), or any of the other functions listed in the affected functions list (below), PHP caches the information
those functions return in order to provide faster performance. However, in certain cases, you may want to clear the cached information. For
instance, if the same file is being checked multiple times within a single script, and that file is in danger of being removed or changed
during that script's operation, you may elect to clear the status cache. In these cases, you can use the clearstatcache(3) function to
clear the information that PHP caches about a file.
You should also note that PHP doesn't cache information about non-existent files. So, if you call file_exists(3) on a file that doesn't
exist, it will return FALSE until you create the file. If you create the file, it will return TRUE even if you then delete the file. How-
ever unlink(3) clears the cache automatically.
Note
This function caches information about specific filenames, so you only need to call clearstatcache(3) if you are performing multi-
ple operations on the same filename and require the information about that particular file to not be cached.
Affected functions include stat(3), lstat(3), file_exists(3), is_writable(3), is_readable(3), is_executable(3), is_file(3), is_dir(3),
is_link(3), filectime(3), fileatime(3), filemtime(3), fileinode(3), filegroup(3), fileowner(3), filesize(3), filetype(3), and fileperms(3).
PARAMETERS
o $clear_realpath_cache
- Whether to clear the realpath cache or not.
o $filename
- Clear the realpath and the stat cache for a specific filename only; only used if $clear_realpath_cache is TRUE.
RETURN VALUES
No value is returned.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | Added optional $clear_realpath_cache and $file- |
| | name parameters. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
clearstatcache(3) example
<?php
$file = 'output_log.txt';
function get_owner($file)
{
$stat = stat($file);
$user = posix_getpwuid($stat['uid']);
return $user['name'];
}
$format = "UID @ %s: %s
";
printf($format, date('r'), get_owner($file));
chown($file, 'ross');
printf($format, date('r'), get_owner($file));
clearstatcache();
printf($format, date('r'), get_owner($file));
?>
The above example will output something similar to:
UID @ Sun, 12 Oct 2008 20:48:28 +0100: root
UID @ Sun, 12 Oct 2008 20:48:28 +0100: root
UID @ Sun, 12 Oct 2008 20:48:28 +0100: ross
PHP Documentation Group CLEARSTATCACHE(3)