clexec

CLojure EXECute: Library for executing commands from shell

Why

This code used to be a part of a larger project that was split into three smaller projects (cliprange, cliptools and clexec). When split out, this part alone doesn't do much. As a library you might find some uses of it, or rip out some code. You could use the jar functionality, but I would rather use a regular shell. Be aware that this library makes use of the shell tools: sh, pgrep, kill. Should work on both BSD and GNU versions though.

Installation

• For installation with localrepo:
  • First download the source code, then cd into the source and execute:
    • lein clean ; lein uberjar ; lein localrepo install target/*-standalone.jar no.ifixit/clexec "1.0.0"
  • Then you can require the library into clojure as you would any other library:
    • (require '[clexec.core :refer [run-commands list-pids kill]])

Usage

Application

• Jar:
  • java -jar target/clexec-*.jar 'sleep 60; sleep 60', execute commands seperated by ";", then prints out the pid of the jar. Each commands is executed in the background
  • # kill -USR2 jar-pid, execute from a shell. Kills all spawned background processes, then the parent process itself

Library

• Functions, examples:
  • (run-commands (list "sleep 60" "sleep 60")), run commands from the list in background
  • (list-pids), lists all, if any, pids of running background processes
  • (kill (list-pids)), kills all running background processes, then the parent process itself

License

Copyright © 2015 Simen Strange Øya

Distributed under the Modified BSD license