Unix Processes

Below are some of the common unix commands that can be used to list the processes and cpu usage.

ps -ef |less

• list all running process (-e)
• full details (-f)
• page by page (| less)
  

top

• list top 15 cpu intensive processes
• -o option sorts the information by cpu, time, res
  

prstat -avm

• reports active process statistics
• all process (-a)
• -m report microstate process information
  

WinZip Open Source alternative

If you ever needed an alternative tool for WinZip or WinRar, try 7-Zip.

• High compression ratio in new 7z format with LZMA compression
• Supported formats:
  • Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
  • Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
• For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
• Strong AES-256 encryption in 7z and ZIP formats
• Self-extracting capability for 7z format

http://www.7-zip.org/download.html

Dynamic DNS

This free service from DynDNS allows you to create a hostname that binds to your Dynamic IP or Static IP. Best of All the Service is Absolutely free.. Check it out soon..

http://www.dyndns.com/services/dns/dyndns/

Java Collections Quick Lookup

Class	Map	Set	List	Ordered	Sorted
HashMap	x			No	No
HashTable	x			No	No
TreeMap	x			Sorted	By natural order or custom comparison rules
LinkedHashMap	x			By insertion order or last access order	No
HashSet		x		No	No
TreeSet		x		Sorted	By natural order or custom comparison rules
LinkedHashSet		x		By insertion order	No
ArrayList			x	By index	No
Vector			x	By index	No
LinkedList			x	By index	No
PriorityQueue				Sorted	By to-do order

Having problems with your bookmarks

I always had these problems with bookmarks.

• failed to backup them
• lost them when hard disk fails
• had problems syncing between bookmarks on different PCs

Solution, vist www.foxmark.com a free service provided as a Mozilla plugin.
Here they sync and maintain the bookmarks in all your PCs.