pushd1

来自「linux脚本编程的例子」· 代码 · 共 14 行

pushd ()
{
    dirname=$1
    if cd ${dirname:?"missing directory name."}   # if cd was successful
    then
        DIR_STACK="$dirname ${DIR_STACK:-$PWD' '}"  # push the directory
        echo $DIR_STACK
    else
        echo still in $PWD.                       # else do nothing
    fi
}