In /usr/bin/sensible-browser line 5: [ -n "$BROWSER" ] && [ "$(which $BROWSER || true)" = "$p" ] && BROWSER= ^------^ SC2086: Double quote to prevent globbing and word splitting. Did you mean: [ -n "$BROWSER" ] && [ "$(which "$BROWSER" || true)" = "$p" ] && BROWSER= For more information: https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...