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sudo mount /dev/sdXY /mnt
sudo mount --bind /dev /mnt/dev &&
sudo mount --bind /dev/pts /mnt/dev/pts &&
sudo mount --bind /proc /mnt/proc &&
sudo mount --bind /sys /mnt/sys

sudo chroot /mnt

grub-install /dev/sdXY
grub-install --recheck /dev/sdXY

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Ensuring a Clean Device Removal

* Close all users of the device and backup device data as needed.
* Use umount to unmount any file systems that mounted the device.
* Remove the device from any md and LVM volume using it. If the device is a member of an LVM Volume group, then it may be necessary to move data off the device using the pvmove command, then use the vgreduce command to remove the physical volume, and (optionally) pvremove to remove the LVM metadata from the disk.
* If the device uses multipathing, run multipath -l and note all the paths to the device. Afterwards, remove the multipathed device using multipath -f device.
* Run blockdev –flushbufs device to flush any outstanding I/O to all paths to the device. This is particularly important for raw devices, where there is no umount or vgreduce operation to cause an I/O flush.
* Remove any reference to the device's path-based name, like /dev/sd, /dev/disk/by-path or the major:minor number, in applications, scripts, or utilities on the system. This is 

alambike

curl -kL https://raw.github.com/cstrap/monaco-font/master/install-font-ubuntu.sh | sudo bash 

alambike

use strict;
use Data::Dumper;

my $pid = $ARGV[0];

open my $f, "/proc/$pid/environ" || die($!);

my $linea = <$f>;
print Dumper(split '\0', $linea);

alambike

#================
Start Swarm setup
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
ROLE=MANAGER
PRIVATE_IP=10.0.0.6
DOCKER_FOR_IAAS_VERSION=azure-v1.13.0-rc4-beta14
ACCOUNT_ID=0aff12f8-9fd1-467b-b90a-5979b2aabf60
REGION=northeurope
AZURE_HOSTNAME=e4b4e1ca87f5
#================

alambike

#!/bin/bash
for d in $(docker ps -q); 
do       
    container_layer=$(docker inspect --format '{{ .GraphDriver.Data.MergedDir }}' $d);
    size=$(du -sh $container_layer/..|cut -f1);
    echo "container $d escribe en $container_layer, ocupa $size"; 
done

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<?php

echo "<h1 style='text-align: center'>".gethostname()."</h1><hr>";

phpinfo();