Decompressing a BackupPC compressed file The compressed file format is as generated by Compress::Zlib::deflate To easily decompress a BackupPC compressed file, the script BackupPC_zcat can be found in /usr/share/backuppc/bin. For each file name argument it inflates the file and writes it to stdout. If a big file has very high compression (meaning it will use too much memory when it is inflated), BackupPC calls the flush() method, which gracefully completes the current compression. Example for "BackupPC_zcat": see Command_-_line_restore_options.txt