Simple template engine with bash

example-template

Hello: X=$X
Hello: X=$X'''
Hello: X="$X"
Hello: X=$X "kjh
kjd"
$(date)

example-usage.sh

#!/bin/bash
 
# first let's import gen-template function
source gen-template.sh
 
# set variables used in the template
X=abc
 
# now let's generate text from the template - it will be printed to stdout
gen-template example-template
 
# ... or we can save it to a file
gen-template example-template > file

gen-template.sh

#!/bin/bash
 
function gen-template() {
  local tpl_file="$1"
  local tpl_body="$(cat $tpl_file)"
  eval "$(cat <<nNEZzh14FVSdj9PkY8feFaqoFyCZRdMx
cat <<Yd3ykiiIaWDrgbqLJzzSVKw455ZzrpSP
$tpl_body
Yd3ykiiIaWDrgbqLJzzSVKw455ZzrpSP
nNEZzh14FVSdj9PkY8feFaqoFyCZRdMx
)"
}