diff --git a/4-public-ip.sh b/4-public-ip.sh
index fe13280..708d0aa 100755
--- a/4-public-ip.sh
+++ b/4-public-ip.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # there are a few different ways to resolve public-ip,
 # keep trying until we get a result
diff --git a/6-public-ip.sh b/6-public-ip.sh
index 1f0caf4..4396e98 100755
--- a/6-public-ip.sh
+++ b/6-public-ip.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # there are a few different ways to resolve public-ip,
 # keep trying until we get a result
diff --git a/all-crons.sh b/all-crons.sh
index a8aff02..ab07dce 100755
--- a/all-crons.sh
+++ b/all-crons.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # quickly generate a script file which will contain all crontab tasks.
 # optionally takes filename to use, defaults to 'crontasks.sh'.
diff --git a/cloudflare.sh b/cloudflare.sh
index fd2637f..5201594 100755
--- a/cloudflare.sh
+++ b/cloudflare.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 quiet=false
 dryrun=false
diff --git a/colors.sh b/colors.sh
index 8381b00..3444644 100755
--- a/colors.sh
+++ b/colors.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "NOTE: when using in prompt (such as PS1), color escape codes"
 echo "should be \\[surrounded by escaped square brackets\\]"
diff --git a/config.example.sh b/config.example.sh
index b3af44e..6c7a190 100644
--- a/config.example.sh
+++ b/config.example.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # degrees in Celsius which we regard as too high
 THERMAL_ALERT=70
diff --git a/crons/backup-log.sh b/crons/backup-log.sh
index 1e8c8ae..27c0a02 100755
--- a/crons/backup-log.sh
+++ b/crons/backup-log.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 backupDir="$1"
 backupType="$2"
diff --git a/crons/prune-old-backups.sh b/crons/prune-old-backups.sh
index 3c1c184..fd17f06 100755
--- a/crons/prune-old-backups.sh
+++ b/crons/prune-old-backups.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # prune the directory of matching files or subfolders,
 # until we only have the desired number of backups remaining.
diff --git a/crons/storage-alert.sh b/crons/storage-alert.sh
index 965ff9f..375d115 100755
--- a/crons/storage-alert.sh
+++ b/crons/storage-alert.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 locations="$@"
 
diff --git a/crons/storage-log.sh b/crons/storage-log.sh
index c603c96..65520d5 100755
--- a/crons/storage-log.sh
+++ b/crons/storage-log.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 locations="$@"
 
diff --git a/crons/thermal-alert.sh b/crons/thermal-alert.sh
index 39a97c6..a830547 100755
--- a/crons/thermal-alert.sh
+++ b/crons/thermal-alert.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # degrees in Celsius which we regard as too high, defaults to config
 alertLevel="$1"
diff --git a/crons/thermal-log.sh b/crons/thermal-log.sh
index fd2e509..0a42ebc 100755
--- a/crons/thermal-log.sh
+++ b/crons/thermal-log.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 scriptRoot="$(dirname "$0")/.."
 
diff --git a/delay.sh b/delay.sh
index 0a94963..9256e0b 100755
--- a/delay.sh
+++ b/delay.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # optionally takes a single argument of how long of a delay to take. defaults to 5 seconds.
 seconds=$1
diff --git a/df-custom.sh b/df-custom.sh
index 82c0f4e..c83a281 100755
--- a/df-custom.sh
+++ b/df-custom.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 LOCATION=`dirname "$0"`
 
diff --git a/discord.sh b/discord.sh
index 1ed3cdd..182b99d 100755
--- a/discord.sh
+++ b/discord.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # discord colors are standard 6-digit hex, but converted to a base-10 integer
 # colors taken from https://xkcd.com/color/rgb/
diff --git a/docker-hosts.sh b/docker-hosts.sh
index fa37148..bddae81 100755
--- a/docker-hosts.sh
+++ b/docker-hosts.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 docker ps --format='{{json .Names}}' | xargs docker inspect -f '{{range .NetworkSettings.Networks}}{{json .}}{{end}}' | jq -r '.IPAddress + " " + .Aliases[0]'
 
diff --git a/docker-ps.sh b/docker-ps.sh
index fbbe5d5..38f5a69 100755
--- a/docker-ps.sh
+++ b/docker-ps.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # determine if show all or not, default to not
 all=""
diff --git a/domain-check.sh b/domain-check.sh
index c4596e4..7485fd1 100755
--- a/domain-check.sh
+++ b/domain-check.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # check https status code, for domain, and lookup ip address.
 # check-domain.sh www.example.com [example.org]
 
diff --git a/dynv6.sh b/dynv6.sh
index c85b5c5..57f233c 100755
--- a/dynv6.sh
+++ b/dynv6.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 quiet=false
 while getopts 'q' flag; do
diff --git a/enumerate.sh b/enumerate.sh
index 7d4f5fe..7da4744 100755
--- a/enumerate.sh
+++ b/enumerate.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 sort <&0 | uniq --count | sort --numeric-sort
 
diff --git a/fetch-all.sh b/fetch-all.sh
index 0ae3a4c..7ab537e 100755
--- a/fetch-all.sh
+++ b/fetch-all.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # perform a "git fetch" on each location specified (recursively), or current location if none specified.
 # git will quietly ignore any git repo stored in a folder you lack permission on.
diff --git a/golang-update.sh b/golang-update.sh
index a348e46..21ef3f5 100755
--- a/golang-update.sh
+++ b/golang-update.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # the command used to initialize our subtree
 #git subtree add --prefix golang-install https://github.com/canha/golang-tools-install-script.git master --squash
diff --git a/identify-missing.sh b/identify-missing.sh
index d725d17..dfd9ea2 100755
--- a/identify-missing.sh
+++ b/identify-missing.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # identify-missing.sh ./* < file_list.txt
 # will list all files from file/input which is not present in the given loction.
 
diff --git a/is-restart-needed.sh b/is-restart-needed.sh
index a03bf52..b5d47ae 100755
--- a/is-restart-needed.sh
+++ b/is-restart-needed.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [ -f "/var/run/reboot-required" ]; then
     echo "----- Reboot Needed ---------------------------------"
diff --git a/list-all.sh b/list-all.sh
index 5153518..a11728a 100755
--- a/list-all.sh
+++ b/list-all.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # perform a "git remote -vv" on each location specified (recursively), or current location if none specified.
 # git will quietly ignore any git repo stored in a folder you lack permission on.
diff --git a/named-cat.sh b/named-cat.sh
index 5435c92..37a22cc 100755
--- a/named-cat.sh
+++ b/named-cat.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # cat given files prefixed with their filenames.
 # named-cat.sh file1.txt file2.txt
 
diff --git a/one-time-stuff/basic-settings.sh b/one-time-stuff/basic-settings.sh
index d8f95a1..18f9236 100755
--- a/one-time-stuff/basic-settings.sh
+++ b/one-time-stuff/basic-settings.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # configure basic settings, will prompt for input
 
 # setup symlinks, if not installed in users bin directory
diff --git a/one-time-stuff/docker-install.sh b/one-time-stuff/docker-install.sh
index dfb2ffa..ce8e78c 100755
--- a/one-time-stuff/docker-install.sh
+++ b/one-time-stuff/docker-install.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 read -p "Add docker to apt sources and install docker? [y/N]: " response
 case $response in
diff --git a/one-time-stuff/install-software.sh b/one-time-stuff/install-software.sh
index 4bb6a26..373b045 100755
--- a/one-time-stuff/install-software.sh
+++ b/one-time-stuff/install-software.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # install common software, will prompt before each step
 
 #echo "----- Use nginx straight from nginx.org -------------"
diff --git a/one-time-stuff/privacy-setting.sh b/one-time-stuff/privacy-setting.sh
index 41c8fcc..19a469c 100755
--- a/one-time-stuff/privacy-setting.sh
+++ b/one-time-stuff/privacy-setting.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "----- Disable IPv6 privacy settings? in sysctl -------"
 read -p 'if using as a IPv6 enabled server, you probably want to turn that off? [y/N]: ' fix_tempaddr
diff --git a/one-time-stuff/setup-composer.sh b/one-time-stuff/setup-composer.sh
index e00f5fa..dde9579 100755
--- a/one-time-stuff/setup-composer.sh
+++ b/one-time-stuff/setup-composer.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # return to where we were when we started
 STARTED_IN=`pwd`
diff --git a/one-time-stuff/ssh-config.sh b/one-time-stuff/ssh-config.sh
index cecfb68..c0cc5d0 100755
--- a/one-time-stuff/ssh-config.sh
+++ b/one-time-stuff/ssh-config.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "----- Switch to secure ssh conf ---------------------"
 read -p 'Install the secure "sshd_config" file? [y/N]: ' secure_ssh
diff --git a/one-time-stuff/ssh-port-change.sh b/one-time-stuff/ssh-port-change.sh
index f61fa96..5ac8ba0 100755
--- a/one-time-stuff/ssh-port-change.sh
+++ b/one-time-stuff/ssh-port-change.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo 'Enter the desired new port for ssh to use, leave blank to abort.'
 read -p 'change ssh to operate on a different port then normal? [<new-port-number>]: ' change_port
diff --git a/one-time-stuff/system-git-enable.sh b/one-time-stuff/system-git-enable.sh
index b4d21cb..95be9e4 100755
--- a/one-time-stuff/system-git-enable.sh
+++ b/one-time-stuff/system-git-enable.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # make it easy for sudo calls to have access to key scripts
 
 # setup symlinks, if not installed in users bin directory
diff --git a/one-time-stuff/x-nextcloud.sh b/one-time-stuff/x-nextcloud.sh
index 3614ac6..9bcd475 100755
--- a/one-time-stuff/x-nextcloud.sh
+++ b/one-time-stuff/x-nextcloud.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 LOCATION=`realpath "$0"`
 LOCATION=`dirname "${LOCATION}"`
diff --git a/public-ip.sh b/public-ip.sh
index 91d3fc9..6d8e13f 100755
--- a/public-ip.sh
+++ b/public-ip.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # does not always work, when you have an IPv6 connection
 # dig +short A myip.opendns.com @resolver1.opendns.com
diff --git a/pull-all.sh b/pull-all.sh
index 1a0aa09..fdeda7a 100755
--- a/pull-all.sh
+++ b/pull-all.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # perform a "git pull" on each location specified (recursively), or current location if none specified.
 # git will quietly ignore any git repo stored in a folder you lack permission on.
diff --git a/restart-if-needed.sh b/restart-if-needed.sh
index f83cfee..27fee57 100755
--- a/restart-if-needed.sh
+++ b/restart-if-needed.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [ -f "/var/run/reboot-required" ]; then
     echo "----- Reboot Needed ---------------------------------"
diff --git a/singleton.sh b/singleton.sh
index ed52a56..0e9051f 100755
--- a/singleton.sh
+++ b/singleton.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # run the given command, but only if it's not already running.
 # singleton.sh long_running_script.sh --arguments --allowed
 
diff --git a/speed-test-ttfb.sh b/speed-test-ttfb.sh
index 1425a09..2e9d7cc 100755
--- a/speed-test-ttfb.sh
+++ b/speed-test-ttfb.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # speed-test-ttfb https://www.example.com/
 
 curl -w "Connect time: %{time_connect} Time to first byte: %{time_starttransfer} Total time: %{time_total} \n" -s -o /dev/null "$@"
diff --git a/status-all.sh b/status-all.sh
index 780ffe7..53e08ab 100755
--- a/status-all.sh
+++ b/status-all.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # perform a "git status" on each location specified (recursively), or current location if none specified.
 # git will quietly ignore any git repo stored in a folder you lack permission on.
diff --git a/storage.sh b/storage.sh
index bd80b54..fd2cef2 100755
--- a/storage.sh
+++ b/storage.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 device="$1"
 
diff --git a/thermal.sh b/thermal.sh
index ef95d34..ae50f94 100755
--- a/thermal.sh
+++ b/thermal.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 alertLevel="$1"
 
diff --git a/upgrade.sh b/upgrade.sh
index 7a2c5c6..a4291da 100755
--- a/upgrade.sh
+++ b/upgrade.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "----- APT Update ------------------------------------"
 sudo apt update -y