Aliosque subditos et thema
Renaming files in DOS by REN command REN FILE1.TXT FILE2.TXT - Renames FILE1.TXT into FILE2.TXT REN FILE1.TXT FILE2.HTM - Renames FILE1.TXT into FILE2.HTM REN *.TXT *.HTM - Renames all files with .txt extension into files with .htm extension. Only extensions are changed, the file names proper are left as they were. Since REN is the shorter form of RENAME command, RENAME may be used instead - as more self-explaining may be. Renaming files in DOS by MOVE command MOVE FILE1.TXT FILE2.TXT - Renames FILE1.TXT into FILE2.TXT MOVE FILE1.TXT FILE2.HTM - Renames FILE1.TXT into FILE2.HTM Both methods of file renaming work in Windows command prompt as well. But there is a certain distinction: MS-DOS, other typical / older DOS'es, command prompt of Windows prior to Windows 95 and Windows NT 3.51 use a short filename / 8.3 filename convention. So, for example, REN FILE1.HTM FILE1.HTML is not going to work, there will be "Duplicate file name or file name not found" message. And that is not the case with newer DOS'es or command prompt of newer Windows. It can be not the case in older DOS'es also - if relevant drivers are installed. [ 1 ] MS-DOS 6.0+ tested - but it also may happen to work well under other versions of MS-DOS or other DOS'es.
Extracting tar.gz files in Linux, command line: tar zxvf file.tar.gz - z : filter the archive through gzip [ 1 ] - x : extract files from an archive - v : list the files processed - f : use archive file The command extracts the contents of a compressed archive to the current directory. Tar creates an archive of one or several files. Then gzip is used to compress it. Or both processes are made at once by tar only, with corresponding options employed. The duality of nature - archived and compressed after - is reflected in the extension of the file ("tar.gz") and requires two procedures to be performed while extracting: decompressing and unpacking. Hence both z (decompress it) and x (unpack it) in the command. [ 1 ] Sources for the option letters description: tar(1) - Linux man page and LinuxCommand.org