Skip to content

jswrenn/turnout-for-what

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

2 Commits
 
 
 
 
 
 
 
 
 
 

Repository files navigation

turnout-for-what

https://upload.wikimedia.org/wikipedia/commons/a/a2/V%C3%BDm%C4%9Bna_hrotit%C3%A1.jpg

Usage

tfw SWITCH
SWITCH
A file descriptor yielding a stream of line-separated paths. For every line received from stdin, the last path received from SWITCH indicates the file that the line should be redirected to.

Example

A load-balancer for the natural numbers:

#!/usr/bin/env bash

trap "rm -f nat {0..4}; pkill -P $$" EXIT

touch nat {0..4}

while true; do
  echo $((i++))
  sleep 0.2;
done > nat &

tail -f nat | cargo run -- <(tail -f nat | xargs -I{} expr {} % 5) &

while true; do
  sleep 0.2
  clear
  wc -l {0..4}
done

This script will create five text files, balance the natural numbers between them, and continuously print their line counts.

About

Shell utility for conditional redirection.

Resources

Stars

Watchers

Forks

Packages

No packages published

Languages