continue

Ends the current iteration of a loop and continues with the next iteration of a for, while, or until loop.

Synopsis

continue [n]

Main Purpose

• Ends the current iteration of the loop and starts the next one; can specify which nested level to continue from.

Arguments

n (optional): An integer greater than or equal to 1, specifying the nested level of the loop to continue.

Return Value

Returns success unless n is less than 1.

Examples

# The default value of the optional parameter n is 1.
for((i=3;i>0;i--)); do
  # Skip to the next iteration of the inner for loop.
  for((j=3;j>0;j--)); do
    if((j==2)); then
      # continue 1 produces the same result.
      continue
    fi
  printf "%s %s\n" ${i} ${j}
  done
done
# Output
3 3
3 1
2 3
2 1
1 3
1 1

# When n is 2:
# Skip to the next iteration of the outer for loop.
for((i=3;i>0;i--)); do
  for((j=3;j>0;j--)); do
    if((j==2)); then
      continue 2
    fi
  printf "%s %s\n" ${i} ${j}
  done
done
# Output
3 3
2 3
1 3

Note

1. This is a bash built-in command. For more help, use the help command. 观察