This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
I have some exposure to shell scripting. Still trying to understand in a better way. Like looking detailed informations regarding the use of characters like -d, -t, -n kind of stuff. I am using bash. Could some one suggest me any online post where I can refer myself to get more grip.