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== Remove comments and blank lines ==
== Remove comments and blank lines ==
cat /etc/apache2/sites-enabled/default-ssl.conf | grep -v '^$\|^\s*\#'
cat /etc/apache2/sites-enabled/default-ssl.conf | grep -v '^$\|^\s*\#'
== Grep with blanks ==
cat dig_output.txt | grep -E 'IN[[:blank:]]A'