Here is a way to autosave a file at regular intervals: use cron!

The trick is to know that cron need percents to be escaped by a backslash in the command zone. For example, here is my crontab entry to create every 10 minutes a local backup of an important project file I currently work on:

*/10 * * * * kevin cp "/home/kevin/Desktop/Projects/Very Important Project/project.file" "/home/kevin/Desktop/Projects/Very Important Project/project.file-backup-`date +\%s`"

Quick and dirty, but may saves you precious time on unstable machines! ;)

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