A mistake most bash beginners make

It's the array variable expantion. here is an example:

x=( a b "c d" );

echo ${x[@]}

in this example a beginner would thinkg that ${x[@]} would be expanded to 3 fields but no. It would be expanded into 4 field a,b,c,d . It's very confusing. however to prevent it we just quote the parameter expansion like "${x[@]}" and now it would only expand to 3 fields :)

hope you learned something new.

Posted in: s/bash

🚀 random2934

2024-08-21 · 2 years ago · 👍 lanterm, nerd, coldcalzone