These are generally good tips. I swear by

    set -e # same as set -o errexit

and I like using list constructs (&& ||) in lieu of simple `if` test blocks but it's really important to remember that list constructs aren't exactly the same. This always catches me out:

    if [ -e "missingfile" ]
    then
        echo "you'll never see this"
    fi

(above runs fine with set -e)

    [ -e "missingfile" ] && echo "you'll never see this"

(while that one correctly fails and thus `set -e` fails the script)

I generally stick an `|| true` on the end of those list constructs.

fwiw.