cut command

cut command displays the selected columns or fields from each line of a file.

Column selection mode:

A column is one character position. This type of selection is specified with -c option. List entries can be open (from the beginning like in -5, or to the end like in 6-), or closed (like 6-9).
cut -c 4,5,20 foo # cuts foo at columns 4, 5, and 20
cut -c 1-5 a.dat | more # print the first 5 characters of every line in the file a.dat

Field selection mode:

In this mode cut selects not characters but fields delimited by specifiec one character delimiter specified by option -d. The list of fields is specified with -f option ( -f [list] )

cut -d ":" -f1,7 /etc/passwd # cuts fields 1 and 7 from /etc/passwd cut -d ":" -f 1,6- /etc/passwd # cuts fields 1, 6 to the end from /etc/passwd

The default delimiter is TAB. If space is used as a delimiter, be sure to put it in quotes (-d " ").

Running jnlp files in Linux while using Firefox

it is quite simple you need to install jdk & you have to choose which file to open that.

1. Install jdk from http://java.sun.com

sudo ./jdk-6u14-ea-bin-b03-linux-i586-10_mar_2009.bin

2. try to open java web start file ( jnlp ) from browser and when browser prompt - openwith - direct to always open with /bin/javaws

Thats all you are done.

installing VMWARE on UBUNTU (.bundle file)

To install .bundle file in ubuntu you need to run the following command

sudo sh VMware-Player-2.5.1-126130.i386.bundle

then follow the instruction & you are done.