Expand description
§bak9
Creates a backup .bak copy of FILE.
Usage: bak [OPTION]... FILE [DIR]
If DIR is not specified, the copy is created in the same directory as FILE.
If multiple backups of FILE exist, the filename extension used will be: .bak.N.
With multiple backups, the most recent backup will be always bak.0. Previous
copies will have their filename extension shifted by 1 (e.g., bak.1 -> bak.2).
Pruning (deletion) occurs after -n NUM backups.
If the current backup is no different than its predecessor, copying will be skipped.
§Options
-
-d
Deletes all backup files for the source FILE. -
-n NUM
Creates at most NUM backup files.
If not specified, defaults to 10 (0-9).
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