--- check: | PHP_VERSION="$(php -v | grep ^PHP | awk '{print $2}' | grep -Eo '[0-9]\.[0-9]')" \ && if echo "${PHP_VERSION}" | grep -E '5\.2|5\.3|5\.4|5\.5'; then \ mutool 2>&1 | grep ^usage; \ else \ echo test > test.txt \ && mutool create -o test.pdf test.txt \ && file test.pdf | grep 'PDF document' \ && rm test.txt \ && rm test.pdf; \ fi \ all: type: apt package: mupdf-tools