May eventually need to configure a network interface in a very quick but not permanently.To do so can use the ifconfig command as follows:

ifconfig eth0 192.168.10.200 netmask 255.255.255.0

If you do not know what is the interface or if you want to check if the configuration iscorrect, they can simply run ifconfig.

After configuring the IP is to configure the gateway (gateway). In this case we will do isadd a route to route network packets to the gateway:

route add default gw 192.168.10.254

If you have a PC or a server passing of the time with no activity on the disk, can save a little on the electricity bill if the halt. It's true that can make configuring power management on your desktop environments (KDE, Gnome, etc.) but what I present here is a simple and rapid method for manually configuring this mechanism, ie the operating system Bash.
The tool to use hdparm is used to but to suspend the operation of hard disks can also adjust parameters of cache, DMA, or even acoustic noise, among others.
- Installation: aptitude install hdparm  
- Suspend for 2 minutes: hdparm-S 24 /dev/ sda
- Check the condition of the disk: hdparm -C /dev/sda
- Configure the permanent suspension: vim /etc/hdparm.conf - And add at end of file the following code:  
/dev/sda {
       spindown_time = 24  
}  
- Then you just have to restart your PC, or the service - /etc/init.d/hdparm reload 

Note: the sda is the disk ID in Linux, in your case is hard to see that they have, they can do it as fdisk-l and then with the tool Partition Editor (GParted). If you have only one SATA disk to start is sda if hda is an IDE. If they are not much inside it, then I suggest you to search or ask here on the blog:)

Today I leave you here a very simple way to concatenate files split, where normally the extension is 001, 002, 003, etc..
 
These files are very common in RapidShare or services of that kind.
 
My preferred way:  
cat ficheiros_divididos.avi.??? > Ficheiro_concatenado.avi

In this second way that I present have to be careful not to have divided other files in the directory where:  
cat *. [0-9] [0-9] [0-9]> ficheiro_concatenado.avi

Source

If you have a file server to Linux, certainly have needed to find files of a particular user, or its UID or GID, or even by your username. Here is this article, some examples of how futilizar the find command for this and other effects more basic.


Find files by user identifier (UID)?
find. /-uid 502

For user name:
find. / user-joselito

For identifier then the group (GID):
find. /-gid 1000

Locate all files with extension. Doc:
find. /-iname "*. doc"
find. /-name "*. doc"

Find files that have changed in the last 24 hours:
find. /-name "*. doc"-mtime 0

Find files that have changed to 48:
find. /-name "*. doc"-mtime 1

Locate all files with permissions 777:
find. /-perm / 777

Find files that have changed to exactly 5 days:
find. /-mtime -7

Find files that have changed less than 5 days:
find. /-mtime 5

Find files that have changed to more than 5 days:
find. /-mtime +5


Note: The difference between the parameter name and iname is that the latter is case sensitive - distinguishes the case matching. The parameter. / Indicates that the search is performed from the directory where you are.

lsusb - list USB devices.

lspci - lists the PCI interface.

lscpu - Returns information about the CPU (architecture, quantity, model, intel / amd / other).

lsof - shows all open files by the system.
lsof-u root - Returns only the files opened by root.

lsmod - Lists modules loaded by the operating system.

lsattr - Make a list of the directory where seencontra, showing all the attributes of the files it contains.

dmidecode - Displays information about the system's hardware type, manufacturer, serial number, BIOS version, among others.
dmidecode | grep BIOS
dmidecode | grep Serial
dmidecode | grep Manufacturer

biosdecode - Return all information related to the BIOS.