export markfile=$HOME/.marks
#export markfile2=$HOME/.marks.1
#export FRCODE="GBK"
#export TOCODE="UTF-8"
#fi
m()
{
grep -w "^$(pwd)$" $markfile 1>/dev/null 2>&1
if [ $? -ne 0 ]; then
    echo $(pwd) >> ${markfile}
        #iconv -f $FRCODE -t $TOCODE $markfile > $markfile2
#elif [ "x$1" == "x2" ]; then
#cd $HOME/.alink
#while read id
#do
#[ ! -L $(echo $id|sed 's#\/#\^#g') ] && ln -s $id $(echo $id|sed 's#\/#\^#g')
#done<${markfile}
else
    #if [ ! -z "$1" ];then
    #    grep -v "^$(pwd)$" $markfile > $markfile.tmp ; mv -f $markfile.tmp $markfile
    #else
        echo "mark exists!"
    #fi
fi
}
#==================================================
j ()
{
    if [ -z "$1" ]; then
        if [ -f $markfile ]; then
            nl ${markfile};
        else
            echo "no marks file";
        fi;
    else
        if [ -z "`echo $1 | sed -n '/^[0-9][0-9]*$/p'`" ]; then
            cnt=$(grep -ic "$1" $markfile);
            if [ $cnt -eq 1 ]; then
                tmpdir=$(grep -i "$1" $markfile);
                if [ -d "$tmpdir" ] 2> /dev/null; then
                    cd "$tmpdir";
                else
                    if [ "x$tmpdir" == "x" ]; then
                        echo "select dir is null";
                    else
                        echo "del it! $tmpdir";
                        grep --color=auto -v "^$tmpdir$" $markfile > $markfile.tmp;
                        /usr/bin/mv $markfile.tmp $markfile;
                    fi;
                fi;
            else
                grep --color=auto -in "$1" $markfile | nl;
                echo -e "input number:";
                read number;
                tmpdir="$(grep -i "$1" $markfile|awk -vnumber=$number 'NR==number')";
                grep --color=auto -n "$tmpdir$" $markfile;
                if [ "x$tmpdir" == "x" ]; then
                    echo "select dir is null";
                else
                    if [ -d "$tmpdir" ] 2> /dev/null; then
                        cd "$tmpdir";
                    else
                        echo "del it! $tmpdir";
                        grep --color=auto -v "^$tmpdir$" $markfile > $markfile.tmp;
                        /usr/bin/mv $markfile.tmp $markfile;
                    fi;
                fi;
            fi;
        else
            if [ ! -z "$1" ] && [ $1 -le $( cat ${markfile}|wc -l|tr -d '\r\n') ]; then
                tmpdir="$( awk -vrn=$1 'NR==rn' $markfile)";
                if [ "x$tmpdir" == "x" ]; then
                    echo "select dir is null";
                else
                    if [ -d "$tmpdir" ] 2> /dev/null; then
                        cd "$tmpdir";
                    else
                        echo "del it! $tmpdir";
                        grep --color=auto -v "^$tmpdir$" $markfile > $markfile.tmp;
                        /usr/bin/mv $markfile.tmp $markfile;
                    fi;
                fi;
            else
                echo "no this";
            fi;
        fi;
    fi
}