Change Date with Zone from terminal in linux

date command is used for display date in terminal

you can use --set attribute for set time with zone

date --set="Wed Nov 19 01:11:00 EST 2014"

cat few lines from file from terminal in linux

If you want to get 50 lines after line 7500 then you can get it by below command

sed -n '7500,+50p'  filename

So here 7500 is the line from where i want to get lines
and 50 is the number of lines which i like to read