bash: use less opionated shebang (#1860)

* bash: use less opionated shebang

* bash: add missing echo variable

examples/check_creations.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 KEY_ENCODED=$1
 SCRIPT=$(realpath "$0")

examples/delay_check.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 ping -q -c 2 8.8.8.8 | tail -1 | awk -F "/" '{print $5}'
 ping -q -c 2 8.8.8.8 | tail -1 | awk -F "/" '{print $5}'

javascript/packages/orchestrator/zombie-wrapper.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -uxo pipefail
 
 if [ -f /cfg/coreutils ]; then
@@ -17,6 +17,7 @@ else
     LS="ls"
     KILL="kill"
     SLEEP="sleep"
+    ECHO="echo"
     CAT="cat"
 fi
 

scripts/ci/run-test-env-manager.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Based on https://gitlab.parity.io/parity/simnet/-/blob/master/scripts/ci/run-test-environment-manager-v2.sh
 

scripts/ci/run-test-local-env-manager.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Based on https://gitlab.parity.io/parity/simnet/-/blob/master/scripts/ci/run-test-environment-manager-v2.sh
 

tests/chaos/delay_check.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 POD=$1
 PORT=$2 # 9615 for prometheus

tests/k8s/downloadPolkadot.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euxo pipefail