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shopt -s -o posix two="t w o" ten="t e n" set 1 "$two" 3 4 5 6 7 8 9 "$ten" unset IFS expvar="$*" case $* in "$expvar") ;; *) echo "failed 1" ;; esac case $* in $expvar) ;; *) echo "failed 2" ;; esac alias foo='oneword' foo_word='foo' case "$foo_word" in foo) ;; *) echo failed 3;; esac