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Annotation of 41BSD/cmd/which.sh, revision 1.1

1.1     ! root        1: #
        !             2: #      which : tells you which program you get
        !             3: #      hacked to do aliases (from .cshrc file only!)
        !             4: set noglob
        !             5: foreach arg ( $argv )
        !             6:     set alius = `alias $arg`
        !             7:     switch ( $#alius )
        !             8:        case 0 :
        !             9:            breaksw
        !            10:        case 1 :
        !            11:            set arg = $alius[1]
        !            12:            breaksw
        !            13:         default :
        !            14:            echo ${arg}: "      " aliased to $alius
        !            15:            continue
        !            16:     endsw
        !            17:     unset found
        !            18:     if ( $arg:h != $arg:t ) then
        !            19:        if ( -e $arg ) then
        !            20:            echo $arg
        !            21:        else
        !            22:            echo $arg not found
        !            23:        endif
        !            24:        continue
        !            25:     else
        !            26:        foreach i ( $path )
        !            27:            if ( -x $i/$arg && ! -d $i/$arg ) then
        !            28:                echo $i/$arg
        !            29:                set found
        !            30:                break
        !            31:            endif
        !            32:        end
        !            33:     endif
        !            34:     if ( ! $?found ) then
        !            35:        echo no $arg in $path
        !            36:     endif
        !            37: end

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