This is the command zum that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
zum - free disk space by making holes in files
SYNOPSIS
zum [FILE]...
DESCRIPTION
zum reads a files list on the command line and attempts to perforate these files.
Perforation means, that series of `0' bytes are replaced by lseek(2)s, thus giving the
file system a chance of not allocating real disk space for those bytes.
EXAMPLE
find . -type f -print0 | xargs -0 zum
If you zum under /boot, where your kernel image lives, your system will become unbootable
unless you run lilo again.
Use zum online using onworks.net services