isaaclw

#!/bin/bash
set -e
# Note: 2021-09-09:
# I ran this script and scanned only the hosts that weren't listing a device
# However, it didn't find the block that I needed it to, until I did a global scan:
# ls /sys/class/scsi_host/ | while read host ; do echo "- - -" > /sys/class/scsi_host/$host/scan ; done
# I know this feels dangerous, I would avoid doing it if I understood what was going on, but I eventually just gave up.
# I think there's something wrong below with the matching of the `readlink /sys/block`
# After the full scan, two drives had the same 'host', so I'm not sure if that was the issue or what.

isaaclw

if (typeof String.prototype.startsWith != 'function') {
    "use strict";
    String.prototype.startsWith = function (str){
        return this.slice(0, str.length) == str;
    };
}

var time_wait = 0,
    string_check = '{I want to {',
    action = 'decline',

isaaclw

/usr/sbin/icinga -v /etc/icinga/icinga.cfg | grep -B 1 -iE "(warn|error|read)"; read -p "ready to reload? (ctrl+c to cancel)" foo; /etc/init.d/icinga reload

isaaclw

#!/bin/bash
dev1=$1
remote=$(echo $2 | cut -d ':' -f 1)
dev2=$(echo $2 | cut -d ':' -f 2)

ssh -i ~/.ssh/id_rsa $remote "
  perl -'MDigest::MD5 md5' -ne 'BEGIN{\$/=\1024};print md5(\$_)' $dev2 | lzop -c" |
    lzop -dc | perl -'MDigest::MD5 md5' -ne 'BEGIN{$/=\1024};$b=md5($_);
        read STDIN,$a,16;if ($a eq $b) {print "s"} else {print "c" . $_}' $dev1 | lzop -c |
ssh -i ~/.ssh/id_rsa $remote "lzop -dc |

isaaclw

# first list devices that are connected:
ls /dev/sd*
# then list devices listed in /sys/block:
ls /sys/block/sd*  # I expect they agree, but unsure atm

# find the 'hostid' of the existing devices
for i in $(ls /dev/); do if [[ "$i" =~ "sd" ]]; then (echo -n "$i => "; readlink /sys/block/$i | cut -d '/' -f 5; echo "") | grep "host"; fi; done

isaaclw

#!/bin/bash
if [ -z "$1" ] || [ -z "$2" ] || [ ! -b "$1" ]; then
    echo "Missing a block device, and a size (in that order)";
    echo "   example: $0 /dev/data/apps 3"
    echo "   Ensure your size is bigger than the filesystem"
    echo "   Or type 'optimal' To calculate the size"
    echo
    echo "Size should be in Gigabytes"
    exit 1;
fi

isaaclw

sudo lvs --segments -o +pe_ranges

isaaclw

#!/bin/bash
# This was to create a quick snapshot of the database, make the changes I
# wanted, and then revert the database to exactly the way it was before I
# snapshotted it.

LV=pg_ot
VG=$(/sbin/vgdisplay -s | sed -e 's/  "\([^"]*\)" .*/\1/')
MTPT=/var/lib/postgresql/11/main
PROC=postgres
VERSION=11

isaaclw

#!/bin/bash
echo -n "Do you want to run '$*'? [N/y] "
read -N 1 REPLY
echo
if test "$REPLY" = "y" -o "$REPLY" = "Y"; then
    "$@"
else
    echo "Cancelled by user"
fi

isaaclw

#!/bin/bash

DEMOUNT=0
SETUP=0
NEW=0


while getopts "dsnh" flag; do
    case $flag in
        d|demount) DEMOUNT=1;;