isnapshot - Incremental Backup Program

isnapshot performs incremental backups by copying changed files and symlinking unchanged files to a previous full backup. The result is an always available incremental backup with minimal wasted space.

It's meant to be run as a cron job or manually to create quick snapshots of working directories or to do full system backups.

Simply,

./configure
make
su && make install

Then, add a cron job possibly like the following,

02 4 * * * root /usr/local/bin/isnapshot /home /var/www /etc /snapshot_dir