?? ksh-compat-test
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## replacements for test/[ that do arithmetic expansion on the operands to# the arithmetic operators, like ksh.#function test(){ local -i n1 n3 case "$#" in 3) case "$2" in -lt|-gt|-eq|-ne|-le|-ge) n1=$(( $1 )) n3=$(( $3 )) builtin test "$n1" $2 "$n3" return $?;; *) builtin test "$@" ;; esac;; *) builtin test "$@" ;; esac}function [(){ local -i n1 n3 case "$#" in 4) case "$2" in -lt|-gt|-eq|-ne|-le|-ge) n1=$(( $1 )) n3=$(( $3 )) builtin [ "$n1" $2 "$n3" ] return $?;; *) builtin [ "$@" ;; esac;; *) builtin [ "$@" ;; esac}q=7[ q -lt 10 ]echo $?[ $q -lt 10 ]echo $??? 快捷鍵說明
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