btwn

Command line app to filter lines from stdin based on a range expression like '1...3'.

I built this because it's easier to use than awkward head and tail combinations.

```bash $ btwn --help btwn - command line range filter tool

Filters lines based on the given range expression.

Examples:

'3' - line 3 only '2..6' - lines 2 to 6 exclusive '2...6' - lines 2 to 6 inclusive '3..' - lines 3 onwards '..4' - lines 1 to 4 exclusive

USAGE: btwn [OPTIONS]

FLAGS: -h, --help Prints help information -V, --version Prints version information

OPTIONS: -i, --input Input file (defaults to stdin)

ARGS: A range filter expression, e.g. '1..5' ```

Installation

From crates.io

Run

bash $ cargo install btwn

From git

Clone the repo and run

bash cargo install --path .

Alternately grab a release from the github release page.

Example usage

bash $ cat test.txt a b c d e

Lines 2 to 5 (exclusive)

bash $ cat test.txt | btwn 2..5 b c d

Lines 2 to 5 (inclusive)

bash $ cat test.txt | btwn 2...5 b c d e

Line 2 onwards

bash $ cat test.txt | btwn 2.. b c d e

Line 1 to line 4 (inclusive)

bash $ cat test.txt | btwn ...4 a b c d