Started working on README

README

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+## Barusu - a python tool to back up your apt packages and dconf settings
+
+# Usage:
+
+backup_assistant [opts]
+Options:
+    `-h --help`: show help and exit
+    `-d --backup-dir [directory]`: set the directory for the backup/restoration (default is ~/.backups)
+    `-r --restore`: run the restoration (from backupdir). You must be root to restore, as you'll install packages
+
+# Using with cron
+
+In a terminal run: `crontab` (you might need to choose an editor to continue)
+Once you see your crontab in your editor paste the following line at the end:
+``
+
+# How it works:
+
+backup:
+1. It uses `dpkg` to get a list of all installed packages.
+2. It dumps all settings using `dconf`
+3. The result is two files in `~/.backup` (unless specified otherwise): `packagelist.txt` and `dconf_out.txt` (and a hidden `.backupdone` file for internal usage of the program
+
+restore:
+(you must call the script as root when restoring!)
+1. It uses `dpkg` to set a list of operations exported in `~/.backup/packagelist.txt` then calls `apt-get` to install them
+2. It uses `dconf` to load settings exported in `~/.backup/dconf_out.txt`
+It is possible to provide an alternative backup folder using option `-d` or `backup-dir` as with backups