cdjump.sh

# 快速往上 cd ..
# cd .. ; cd .. ; cd .. 等同于 cdj 3
function cdj {
    CDJUMP_LAST_PWD=`pwd`
    for (( i=0; i<$1; i++ ))
    do
        cd ..
        echo "Jump to `pwd`"
    done
}
# 3 天后 updated: 如果你数错了要跳多少层的话...试试 cdj_fuck
function cdj_fuck {
    cd ${CDJUMP_LAST_PWD}
}