add bash command
a=`expr "$a" + "$num"`
a=$(($a+$num))
((a=a+num))
let a=a+num
((a+=num))add bash command
a=`expr "$a" + "$num"`
a=$(($a+$num))
((a=a+num))
let a=a+num
((a+=num))how to define command in bash
alias yourVariable='cd /Home/yourFolder'Copyright © 2021 Codeinu
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