RANGE(1) | User Contributed Perl Documentation | RANGE(1) |

# NAME¶

numrange - Print out a range of numbers for use in for loops and such.

# SYNOPSIS¶

**numrange** [-dhV] /<expression>/

# DESCRIPTION¶

**numrange** will print out a list of numbers based on an
expression that you specify. This is useful for making a list of numbers for
use in for loops and so on. Ranges are inclusive. Ranges of numbers are
specified using the .. operator, like this /20..50/, which means all
integers from 20 to 50 inclusive. More complex expressions can be generated
using the commas and the 'i' increment operator.

# OPTIONS¶

-e <set> Exclude the <set> of numbers from the range output. <set> is a set of numbers separated by commas. -n <n> Use <n> as the separator between numbers. By default, it will use a space. Use '\n' or \\n for a newline character or use the -N option. -N Just a quick option for using a newline as the separator. -h Help: You're looking at it. -V Increase verbosity. -d Debug mode. For developers

# EXAMPLES¶

All numbers from 1 to 10. $ numrange /1..10/ 1 2 3 4 5 6 7 8 9 10 From 10 to 1. Counting down. $ numrange /10..1/ 10 9 8 7 6 5 4 3 2 1 From 1 to 10 and from 15 to 20. $ numrange /1..10,15..20/ 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 Even numbers from 0 to 10 $ numrange /0..10i2/ 0 2 4 6 8 10 Odd numbers. Notice the starting number in the range expression. $ numrange /1..10i2/ 1 3 5 7 9 Factors of 3 between 99 and 120. $ numrange /99..120i3/ 99 102 105 108 111 114 117 120 Decimal numbers $ numrange /1.1..2.5i0.1/ 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 And negative numbers too. $ numrange /1.0..-2.0i0.3/ 1 0.7 0.4 0.1 -0.2 -0.5 -0.8 -1.1 -1.4 -1.7 -2 You can also pad numbers when you are counting up. This is a trick of how the Perl programming language deals with ranges: $ numrange /01..15/ 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

# BUGS¶

Even though you can do zero padding on simple ranges, like 001..100, it will not pad zeros on complex ranges like 001..100i2, or for counting downwards.

# SEE ALSO¶

seq(1), numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numsum(1), numrandom(1), numround(1)

# COPYRIGHT¶

numrange is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license. Please read the COPYING and LICENSE files that came with the num-utils package

Developers can read the GOALS file and contact me about providing submitions or help for the project.

# MORE INFO¶

More info on numrange can be found at:

2020-06-09 | perl v5.30.3 |