dreamvib ~ music lounge » glossary http://music.dreamvib.com Fri, 12 Jun 2009 08:31:34 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 linux/ unix rm command http://music.dreamvib.com/computer/softwares/linux-unix-rm-command/ http://music.dreamvib.com/computer/softwares/linux-unix-rm-command/#comments Wed, 06 Feb 2008 03:27:36 +0000 dreamvib http://blog.dreamvib.com/?p=12

Linux / Unix rm command

Quick links

About rm
Syntax
Examples
Related commands
Unix main page

About rm

Deletes a file without confirmation (by default).

Syntax

rm [-f] [-i] [-R] [-r] [filenames | directory]

-f Remove all files (whether write-protected or not) in a directory without prompting the user. In a write-protected directory, however, files are never removed (whatever their permissions are), but no messages are displayed. If the removal of a write-protected directory is attempted, this option will not suppress an error message.
-i Interactive. With this option, rm prompts for confirmation before removing any files. It over- rides the -f option and remains in effect even if the standard input is not a terminal.
-R Same as -r option.
-r Recursively remove directories and subdirectories in the argument list. The directory will be emptied of files and removed. The user is normally prompted for removal of any write-protected files which the directory contains. The write-protected files are removed without prompting, however, if the -f option is used, or if the standard input is not a terminal and the -i option is not used. Symbolic links that are encountered with this option will not be traversed. If the removal of a non-empty, write-protected directory is attempted, the utility will always fail (even if the -f option is used), resulting in an error message.
filenames A path of a filename to be removed.

Examples

rm myfile.txt

Remove the file myfile.txt without prompting the user.

rm -r directory

Remove a directory, even if files existed in that directory.

Note that if you use rm to remove a file, it is usually possible to recover the contents of that file. If you want more assurance that the contents are truly unrecoverable, consider using shre

source: http://www.computerhope.com/unix/urm.htm

]]> http://music.dreamvib.com/computer/softwares/linux-unix-rm-command/feed/ 0 what is FQDN http://music.dreamvib.com/computer/what-is-fqdn/ http://music.dreamvib.com/computer/what-is-fqdn/#comments Tue, 05 Feb 2008 02:41:16 +0000 dreamvib http://blog.dreamvib.com/?p=11 FQDN
A fully qualified domain name consists of a host and domain name, including top-level domain. For example, www.webopedia.com is a fully qualified domain name. www is the host, webopedia is the second-level domain, and.com is the top level domain.

A FQDN always starts with a host name and continues all the way up to the top-level domain name, so www.parc.xerox.com is also a FQDN.

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