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TRUNCATE(2)                   System Calls Manual                  TRUNCATE(2)

NAME
       truncate,  ftruncate  -  truncate  a  file  to  a specified length (may
       extend)

SYNOPSIS
       #include <unistd.h>

       int truncate(char *filename, off_t length);
       int ftruncate(int fd, off_t length);

DESCRIPTION
       Truncate causes the file filename  to  be  set  to  the  length  length
       causing data after that size to be lost. If the file is set to a length
       larger than the current file size, the new region can be written to but
       reads  as zeroes. There will be no disk blocks reserved for it. This is
       a hole.

       Ftruncate does the same thing  as  truncate  but  operates  on  a  file
       descriptor instead of a filename.

SEE ALSO
       fcntl(2)

4th Berkeley Distribution        Feb 13, 2006                      TRUNCATE(2)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO