In /usr/bin/mk_modmap line 30: ! with `basename $0` by `whoami`@`hostname` `date` ^-----------^ SC2006: Use $(...) notation instead of legacy backticked `...`. ^-- SC2086: Double quote to prevent globbing and word splitting. ^------^ SC2006: Use $(...) notation instead of legacy backticked `...`. ^--------^ SC2006: Use $(...) notation instead of legacy backticked `...`. ^----^ SC2006: Use $(...) notation instead of legacy backticked `...`. Did you mean: ! with $(basename "$0") by $(whoami)@$(hostname) $(date) For more information: https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ... https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le...