lessthan

Compares the numbers at two positions on each line, and allows through only the lines where the first number is less than the second.

Usage

lessthan [first] [second] [-e | --equal]

• first — position of the first number to compare (default: 0).

• second — position of the second number to compare (default: 1).

• -e, --equal — also allow lines where the two numbers are equal.

Example

Keep only lines where the first number is smaller than the second:

$ cat scores.txt | lessthan 0 1

Raises an error if either position isn’t a number, or if a line doesn’t have enough tokens to read both positions.