Delete last character of last item in a bash array

Question

I have such array:

Array={123},{456} 

Now I want to delete the last item 6.

Answer 1

Arrays in bash are defined like:

a=(foo bar baz) 

Or:

a=([12]=foo [5]=bar) 

(arrays in bash are more like associative arrays with keys limited to positive numbers and with elements sorted on those numerically).

To delete the last character of the element with the greatest key, with recent versions of bash, you'd do:

a[-1]=${a[-1]%?} 

Answer 2

It is not an array, it is just a variable named Array. To remove next to last character of that variable you can play with substring expansion, e.g.:

$ Array={123},{456} $ echo "${Array:0:${#Array}-2}${Array:${#Array}-1}" {123},{45} 

Here ${#Array} denotes number of characters of the variable string.