shellcheck reported issue in this script: SC2078:error:5:8: This expression is constant. Did you forget a $ somewhere?

shellcheck reported issue in this script: SC2116:style:1:16: Useless echo? Instead of 'cmd $(echo foo)', just use 'cmd foo'

shellcheck reported issue in this script: SC2086:info:1:23: Double quote to prevent globbing and word splitting

shellcheck reported issue in this script: SC2015:info:1:66: Note that A && B || C is not if-then-else. C may run when A is true

shellcheck reported issue in this script: SC2046:warning:1:37: Quote this to prevent word splitting

shellcheck reported issue in this script: SC2015:info:1:66: Note that A && B || C is not if-then-else. C may run when A is true

shellcheck reported issue in this script: SC2015:info:2:71: Note that A && B || C is not if-then-else. C may run when A is true

shellcheck reported issue in this script: SC1105:error:6:81: Shells disambiguate (( differently or not at all. For subshell, add spaces around ( . For ((, fix parsing errors

shellcheck reported issue in this script: SC2086:info:2:33: Double quote to prevent globbing and word splitting