Backticks are discouraged for any new scripts, since they complicate nesting, quoting, and escaping, besides being graphically less explicit. See also http://my

Backticks are discouraged for any new scripts, since they complicate nesting, quoting, and escaping, besides being graphically less explicit. See also http://mywiki.wooledge.org/BashFAQ/082 http://mywiki.wooledge.org/BashFAQ/082. The Open Group also discourages backticks: http://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xcu_chap02.html#tag_23_02_06_03 http://pubs.opengroup.org/onlinepubs/9699919799/xrat/V4_xcu_....