Random xrun command?

how to run random xrun command?

xrun c:\potable\chrome1.exe
xrun c:\potable\chrome2.exe
xrun c:\potable\chrome3.exe
xrun c:\potable\chrome4.exe
xrun c:\potable\chrome5.exe

(1) Generate a random value and store it in a variable e. g. ${randomVar}

(2) Use XRUN | c:\potable\chrome${randomVar}.exe