Automated File Backup System

User guide

1- This system contains two main files, backupd.sh and Makefile
2- to run the system you must provide the fllowing parameters in the Makefile:

BASH_SCRIPT=./backupd.sh # path to bash script provided
SRC_DIR= /path/to/source
BACKUP_DIR=/path/to/backupfile
INTERVAL= <number of seconds between backups>
MAX_BACKUPS= <max number of backups>

3- To begin the backup process, run "make backup"

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System overview

• Makefile creates a backup folder if not already created
• then it runs backupd.sh and provides its parameters
• backupd.sh first creates a backup of current file and saves its info in a file "directory-info.last"
• in an infinite loop, the data of the source folder is saved in "directory-info.new" and compared to "directory-info.last"
• if there are changes, the system creates a new backup directory with the date "$(date +'%Y%m%d-%H%M%S')" and saves the new info into "directory-info.last"
• To delete older backups, backups are sorted according to date
• then a for loop runs to delete all directories other than the latest $MAX_BACKUPS

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Directories after running system:

backup directory-info.last Makefile source backupd.sh directory-info.new README.md

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