$ uname -a
Darwin MacBook-Air 14.0.0 Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64 x86_64
$ bash --version
GNU bash, version 4.3.33(1)-release (x86_64-apple-darwin14.1.0)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
$ cat random.sh
str="{templateUrl: '}"
regexp="templateUrl:\s*'"

if [[ $str =~ $regexp ]]; then
  echo "yes"
else
  echo "no"
fi
$ bash random.sh
no