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Operating Systems Linux Red Hat File system is full ..even though file is deleted Post 302834191 by Corona688 on Thursday 18th of July 2013 01:05:19 PM
Old 07-18-2013
Quote:
Originally Posted by Scrutinizer
But I think you cannot truncate a file that has been opened for writing.
You can:
Code:
$ cat truncate.c

#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>

int main(void)
{
        int fd=open("filename.txt", O_CREAT|O_WRONLY);
        write(fd,"HEY GUYS ALJ AF MY FACE IS A ROTTORN BANANA", 43);
        ftruncate(fd, 0);
        close(fd);
}

$ gcc truncate.c
$ ./a.out
$ ls -l ./filename.txt

-rw-r-x--T 1 username users 0 Jul 18 11:04 filename.txt

$

I also tried sleeping while another process truncates, it succeeded too.
This User Gave Thanks to Corona688 For This Post:
 

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uuclean(8c)															       uuclean(8c)

Name
       uuclean - uucp spool directory clean-up

Syntax
       uuclean -p[pre] [ options ... ]

Description
       The  command  scans the spool directory for files with the specified prefix and deletes all those which are older than the specified number
       of hours.

       The -ppre argument causes the command to scan for files with pre as the file prefix.  You can specify up to 10 arguments.   A  without  any
       pre following causes all files older than the specified time to be deleted.  You must specify at least one argument.

Options
       -ntime	    Delete  all  files	whose age is more than time, in hours, (default is 72 hours) and that have the specified pre as their file
		    prefix.

       -m	    Send mail to the owner of the file when it is deleted.

       -ssystem     Delete files in all directories that are subdirectories of the per system spool directory that exists for system.  If  ALL	is
		    specified, then all system directories are processed.  ALL is the default.

       -ddirectory  Delete files that reside in the named directory.  The default directory is The option over rides the option.

       The  command typically starts the program.  In earlier versions, a deleted work file (C.file) would result in mail to the owner of the work
       file, regardless of the option.	Now, notification of deleted work files is sent to the user ID "uucp".	If the option  is  used,  mail	is
       also sent to the owner.

Examples
       Here are some example command lines:
       # uuclean -pLTMP. -pLOG. -n4 -d/usr/spool/uucp
       # uuclean -d/usr/spool/uucp/.XQTDIR -p -n
       # uuclean -smarkie -p -n84
       The third example deletes all files for the system that are older than 84 hours.

Files
       Directory with commands used by uuclean internally

See Also
       uucp(1c), uux(1c), cron(8)

																       uuclean(8c)
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