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VAR=`grep -n "text" <file>`

Scripts should be written with portability in mind, hence the use of bourne syntax is highly advised

Set your input field separator


$ IFS=$'\n'
$ for i in `cat file_name`
>do
>echo $i;
>done

You have two choices in a situation like this:

Setup a port forward from site A to site B, then VNC through that

from site A

# ssh -L 8080:windows_machine:vnc_port site_B
# vncviewer...

Even though you have your answer, the last reboot/boot time can be found with the 'last' command

Find all lines starting with a number, place that in buffer one. Then write 63 followed by buffer one



Find all lines starting with a number and replace the start of line with 63



Find...

Try something like this

sed 's/\(^[0-9]\)/63\1/' <file>