how to type multiple command lines in the terminal
 

I have installed Linux Mint Mate15 in dualboot with WindowsXP and want to migrate my Outlook pst mail files to Thunderbird.
I have copied Outlook.pst and archive.pst to /home/Downloads and according to a method found at the internet I want to type the following command lines in the terminal in order to convert the pst files to Thunderbird format:
cd /home/Downloads
mkdir outlook
mkdir archive
readpst -o ./outlook - M -u -w -e -b Outlook.pst
readpst -o ./outlook - M -u -w -e -b archive.pst

=> How can I enter a next line without breaking off and beginning again at the prompt? I tried Enter, Tab, \n, ;, but nothing worked.

After converting the pst files with readpst I should rename the Inbox folder to avoid a conflict on import as follows:
cd /home/Downloads/outlook/Personal*
mv Inbox OldInbox
cd ../../archive/Archive*
mv Inbox OldInbox

And then switch to Thunderbird to create a new temporary subdirectory "tmp" under "Local Folders" and then:
ImportExportTools
-> import all messages from a directory
-> also from its subdirectories
and choose in the dialog "home/Downloads/outlook/Personal Folders". Then I am supposed to see in the parent foldersubfolders start to appear under "tmp" when importing is underway.

Thanks if anyone can help me.
Henk

use semicolons: command1; command2 etc

or use command1 && command2, but a failing command stops the execution of whole series, i suggest this