alces

<!-- See http://ant.apache.org/manual/index.html for the complete list of options supported by <apply> task -->
<project name="cycle-test" default="stat-cycle">
  <target name="stat-cycle">
    <!-- set parall="true" in order to run the command only once against all files from the set -->
    <apply executable="stat">
      <fileset dir="/etc">
        <patternset>
          <include name="*.conf" />
        </patternset>
      </fileset>

alces

ansible-playbook -i localhost, --syntax-check my-playbook.yml

alces

#!/bin/bash
# tested on CentOS 6.8

tar xvzf etcd-v3.1.0-linux-amd64.tar.gz --strip-components 1 --exclude Documentation --exclude '*.md'
myip=$(hostname -I | awk '{print $1}')
nohup ./etcd --data-dir etcd_data --listen-client-urls http://${myip}:2379 --advertise-client-urls http://${myip}:2379 2>&1 > etcd.log &
echo $! > etcd.pid

alces

---
- name: Recursive copy
  hosts: all
  vars:
    my_src: /path/to/src/dir
    my_dst: /path/to/dst/dir
  tasks:
  - name: find dirs
    find:
      paths: "{{ my_src }}"

alces

// from top-level of the job block:
delegate.name

// from a nested block (such as parameters, steps, etc.):
delegate.item.name

alces

// should be run as Groovy System Script

import hudson.EnvVars
import hudson.model.Environment

def build = Thread.currentThread().executable
def vars = [ENV_VAR1: 'value1', ENV_VAR2: 'value2']

build.environments.add(0, Environment.create(new EnvVars(vars)))

alces

def cmdLine = args.join(' ')
def ps = cmdLine.execute()
ps.in.eachLine {
    println it
}

def status = ps.exitValue()
if (status) {
    println ps.err.text
    throw new IOException("$cmdLine returns $status")

alces

def ant = new AntBuilder()
ant.get(src: 'http://central.maven.org/maven2/jsch/jsch/0.1.29/jsch-0.1.29.jar',
  dest: 'jsch.jar')

alces

@GrabConfig(systemClassLoader = true)
@Grab('jsch:jsch')
@Grab('ant:ant-jsch')

def sshHost = '127.0.0.1'
def sshPort = 2200
def sshUser = 'vagrant'
def sshPrivKey = "${System.getProperty('user.home')}/.vagrant.d/insecure_private_key"

def ant = new AntBuilder()

alces

By default, sudo on the Linux systems executes commands into a minimal environment. So, if you for example has some non-standard directories (such as /opt/groovy/bin) added to your PATH, a command running via sudo won't see any executable in these directories.

Normally, this strict sudo behavior can be changed by removing env_reset (or changing env_keep) variables in /etc/sudoers. But what can you do in case when you have only restricted sudo without write access to this file?

The following command passes a current value of PATH under a command run with sudo privileges:

sudo bash -c "export $PATH; which groovy"