05-01-2013
Quote:
how long the temp.x file will be in system till be deleted ?
It will be in the system very briefly. The
mv command renames it to the name stored in
$log variable, and then temp.x file is gone. Probably better to use
$HOME/temp.x to be safer.
Quote:
is it possible to tell where is my fault ?
Yes, it is possible to tell. Your
sort -u /user/$dir.log command was producing sorted output, but the sorted output was not getting saved. That was why I redirected the output to the temp.x file, and then used
mv to overwrite the
$log file, so the sorted output would get saved.
Anyway, see what happens, and if still a problem, repost the script and whatever error message happens.
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TMPFILE(3) 1 TMPFILE(3)
tmpfile - Creates a temporary file
SYNOPSIS
resource tmpfile (void )
DESCRIPTION
Creates a temporary file with a unique name in read-write (w+) mode and returns a file handle .
The file is automatically removed when closed (for example, by calling fclose(3), or when there are no remaining references to the file
handle returned by tmpfile(3)), or when the script ends.
For details, consult your system documentation on the tmpfile(3) function, as well as the stdio.h header file.
RETURN VALUES
Returns a file handle, similar to the one returned by fopen(3), for the new file or FALSE on failure.
EXAMPLES
Example #1
tmpfile(3) example
<?php
$temp = tmpfile();
fwrite($temp, "writing to tempfile");
fseek($temp, 0);
echo fread($temp, 1024);
fclose($temp); // this removes the file
?>
The above example will output:
writing to tempfile
SEE ALSO
tempnam(3), sys_get_temp_dir(3).
PHP Documentation Group TMPFILE(3)