Exit from a for, while, until, or select loop
If n is supplied, the nth enclosing loop is exited. n must be greater than or equal to 1.
The return status is zero unless n is not greater than or equal to 1.
for myloop in 1 2 3 4 5
echo -n “$myloop”
if [ “$myloop” -eq 3 ] then
break # This line will break out of the loop
break is a POSIX `special’ builtin