On Mon, Oct 19, 2020 at 01:51:04PM -0500, Mike McClain wrote: > I spent a while searching your wiki trying to find your objections > without luck, so would you plaese tell this poor heathen what your > objection to 'set -e' is?
https://mywiki.wooledge.org/BashFAQ/105 > On a different subject, my guess is that your insistence on quoting > variables and using arrays for multi-part parameters is that doing so > as a habit covers the times when a string variable will not expand as > expected while an array will. > Please correct me if I'm mis-reading things. https://mywiki.wooledge.org/Quotes If a string variable contains whitespace (more technically, any character in IFS), or if it contains globbing characters (* ? [ ]), the results of an unquoted expansion can be surprising, in a bad way. Failing to quote the special [@] array expansion is exactly the same as failing to quote "$@" when using the positional parameters. Without the quotews, it will fail to expand each element to a separate word, which is the entire point of using an array. unicorn:~$ array=("this array" has four elements) unicorn:~$ printf '[%s] ' "${array[@]}" ; echo # right [this array] [has] [four] [elements] unicorn:~$ printf '[%s] ' ${array[@]} ; echo # wrong [this] [array] [has] [four] [elements]
