Joomla! site syndication http://www.linuxabove.com 2010-09-06T22:17:32+01:00 http://www.linuxabove.com http://www.linuxabove.com/images/M_images/joomla_rss.png text/html 2009-06-22T09:07:58+01:00 http://www.linuxabove.com http://www.linuxabove.com/index.php?option=com_content&task=view&id=981&Itemid=59 Suppose, you have large number of .tar.gz files in your home directory which you need to move to one directory above (or any other directory). Here is a simple command using which you can save time moving each file individuallyfor f in *.tar.gz; do mv ./ $f ../ $f ; done This command will move all .tar.gz files in current location to above. text/html 2009-06-22T08:26:36+01:00 http://www.linuxabove.com http://www.linuxabove.com/index.php?option=com_content&task=view&id=944&Itemid=59 Watch runs a command repeatedly, displaying its output. Watch tcommand allows to check the program output changes over time. By default, the program run every two seconds. This command is similar to tail. watch -d ls -1 text/html 2009-06-22T08:25:59+01:00 http://www.linuxabove.com http://www.linuxabove.com/index.php?option=com_content&task=view&id=943&Itemid=59 To view the IP addresses of all Network Interfaces configured with your syste, execute the following command: ip addr list text/html 2009-06-22T08:07:25+01:00 http://www.linuxabove.com http://www.linuxabove.com/index.php?option=com_content&task=view&id=929&Itemid=59 To know current logged users through SSH. who | grep -wv ‘:0’ The output will display the IP from which a person has logged in to system as well as the user name. To know the history of all remote logins, use the following command: Last -add | grep -wv ‘0.0.0.0’ text/html 2009-06-16T05:20:24+01:00 http://www.linuxabove.com http://www.linuxabove.com/index.php?option=com_content&task=view&id=659&Itemid=59 For Debian and Ubuntu, you can use commanddpkg -l For Red Hat, Fedora, Mandriva and SUSE, you can use commandrmp –qa