Save the commands in a .SQL file, ex: ClearTables.sql, say in your C:\temp folder.
Contents of C:\Temp\ClearTables.sql
Delete from TableA;
Delete from TableB;
Delete from TableC;
Delete from TableD;
Delete from TableE;
Then use sqlcmd to execute it as follows. Since you said the database is remote, use the following syntax (after updating for your server and database instance name).
sqlcmd -S <ComputerName>\<InstanceName> -i C:\Temp\ClearTables.sql
For example, if your remote computer name is SQLSVRBOSTON1 and Database instance name is MyDB1, then the command would be.
sqlcmd -E -S SQLSVRBOSTON1\MyDB1 -i C:\Temp\ClearTables.sql
Also note that -E specifies default authentication. If you have a user name and password to connect, use -U and -P switches.
You will execute all this by opening a CMD command window.
Using a Batch File.
If you want to save it in a batch file and double-click to run it, do it as follows.
Create, and save the ClearTables.bat like so.
echo off
sqlcmd -E -S SQLSVRBOSTON1\MyDB1 -i C:\Temp\ClearTables.sql
set /p delExit=Press the ENTER key to exit...:
Then double-click it to run it. It will execute the commands and wait until you press a key to exit, so you can see the command output.